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1

Sáenz-Romero, Cuauhtémoc, Gerald E. Rehfeldt, Nicholas L. Crookston, Pierre Duval, and Jean Beaulieu. "SPLINE MODELS OF CONTEMPORARY, 2030, 2060 AND 2090 CLIMATES FOR MICHOACÁN STATE, MÉXICO. IMPACTS ON THE VEGETATION." Revista Fitotecnia Mexicana 35, no. 4 (2012): 333. http://dx.doi.org/10.35196/rfm.2012.4.333.

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Climate data from 149 weather stations of Michoacán State, at Western México, were extracted from a spline climate model developed for México’s contemporary climate (1961-1990), and for climate projected for the decades centered in years 2030, 2060 and 2090. The model was constructed using outputs from three general circulation models (GCMs: Canadian, Hadley and Geophysical Fluid Dynamics) from two emission scenarios (A “pessimistic” and B “optimistic”). Mean annual temperature (MAT), mean annual precipitation (MAP), annual degree days > 5 °C (DD5), and annual aridity index (DD50.5/MAP) wer
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2

Franks, S. W. "Identification of a change in climate state using regional flood data." Hydrology and Earth System Sciences 6, no. 1 (2002): 11–16. http://dx.doi.org/10.5194/hess-6-11-2002.

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Abstract. Flood frequency analysis typically assumes that annual floods arise from a single distribution and are independent. However, there is significant evidence for the existence of persistent climate modes. Timescales associated with climate variability range from inter-annual through to longer, multi-decadal time scales. In the case of the Australian climate, previous studies of the Indian and Pacific Oceans have indicated marked multi-decadal variability in both mean Sea Surface Temperatures (SST) and typical circulation patterns. In this light, data from 40 stream gauges around New Sou
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3

Atedhor, GO. "Agricultural vulnerability to climate change in Sokoto State, Nigeria." African Journal of Food, Agriculture, Nutrition and Development 15, no. 69 (2015): 9855–71. http://dx.doi.org/10.18697/ajfand.69.15220.

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Although climate change is global threat, developing countries have been identified as most vulnerable owing to their low adaptive capacities. In Nigeria, while the impacts of climate cut across diverse sectors, agriculture remains the most susceptible due to the predominance of rainfed agriculture. This paper examines agricultural vulnerability to climate change in eight selected rural settlements in Sokoto State, Nigeria adopting the integrated approach which combines environmental and socio- economic determinants . Monthly rainfall, rain days and temperatures (minimum and maximum) data for
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4

An, Soon-Il, Yoo-Geun Ham, Jong-Seong Kug, Axel Timmermann, Jung Choi, and In-Sik Kang. "The Inverse Effect of Annual-Mean State and Annual-Cycle Changes on ENSO." Journal of Climate 23, no. 5 (2010): 1095–110. http://dx.doi.org/10.1175/2009jcli2895.1.

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Abstract The influence of the tropical Pacific annual-mean state on the annual-cycle amplitude and El Niño–Southern Oscillation (ENSO) variability is studied using the Max Planck Institute for Meteorology coupled general circulation model (CGCM) ECHAM5/Max Planck Institute Ocean Model (MPI-OM1). In a greenhouse warming experiment, an intensified annual cycle of sea surface temperature (SST) in the eastern tropical Pacific is associated with reduced ENSO variability, and vice versa. Analysis showed that the annual-mean states, especially the surface warming in the western Pacific and the thermo
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5

Zorko, Marija, Ivan Kovač, Sanja Kovač, Davor Stanko, and Krešo Pandžić. "Impact of global warming on average annual air temperature in Varaždin." Environmental engineering 9, no. 1-2 (2022): 95–103. http://dx.doi.org/10.37023/ee.9.1-2.10.

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Climate change implies a statistically significant change in the long-term mean state or characteristics of the variability of climate elements. It can be caused by natural and/or anthropogenic factors. Recent global warming is often cited as an example of human-induced climate change. Global warming refers to the increasing trend of the average global surface temperature of the Earth, defined as the global average of the mean annual surface temperature of the ocean, usually to a depth of 30-100 cm, and the mean annual surface temperature of the air above the land at a height of 1-2 m above th
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6

Timmermann, A., S. J. Lorenz, S.-I. An, A. Clement, and S.-P. Xie. "The Effect of Orbital Forcing on the Mean Climate and Variability of the Tropical Pacific." Journal of Climate 20, no. 16 (2007): 4147–59. http://dx.doi.org/10.1175/jcli4240.1.

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Abstract Using a coupled general circulation model, the responses of the climate mean state, the annual cycle, and the El Niño–Southern Oscillation (ENSO) phenomenon to orbital changes are studied. The authors analyze a 1650-yr-long simulation with accelerated orbital forcing, representing the period from 142 000 yr b.p. (before present) to 22 900 yr a.p. (after present). The model simulation does not include the time-varying boundary conditions due to ice sheet and greenhouse gas forcing. Owing to the mean seasonal cycle of cloudiness in the off-equatorial regions, an annual mean precessional
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7

Olali, Kigigha, Ify L. Nwaogazie, and Chiedozie F. Ikebude. "Climate Variability in Temperature Trends and Change Point in Yenagoa, Nigeria." International Journal of Environment and Climate Change 15, no. 3 (2025): 244–56. https://doi.org/10.9734/ijecc/2025/v15i34770.

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This study aims to analyse temperature trend, variation, and change point patterns in Bayelsa State, Nigeria over a 31-year period (1992-2022). The daily temperature data used for the study were obtained from the Nigerian Meteorological Agency (NIMET). The daily maximum and minimum temperature data were further processed to obtain the annual maximum, minimum, and mean temperatures. Several statistical tests were utilized to investigate the temperature trend and to detect change point year. Linear regression and Mann-Kendall tests were employed to establish if there are significant trend in the
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8

Olubanjo, O. "Climate Variation Assessment Based on Rainfall and Temperature in Ilorin Kwara State Nigeria." Applied Research Journal of Environmental Engineering 2, no. 1 (2019): 1–18. http://dx.doi.org/10.47721/arjee20190201018.

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In recent times and across the globe, the concept of climate has gained much relevance because of its dynamic and complex nature and the significant influence it has on various aspects of the environment, including the increasing threat of global climate change. This study focuses on the assessment of climatic variation in Ilorin based on the variations in rainfall and temperature within the period 1980-2015. Time Series Analysis was used to determine the trend of rainfall and temperature within the period 1980-2015. The 5-Year Moving Average was used to smoothen the time series and to elimina
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9

M. B. RAJEGOWDA, B. T. RAVINDRA BABU, N. A. JANARDHANAGOWDA, and K. S. MURALIDHARA. "Impact of climate change on agriculture in Karnataka." Journal of Agrometeorology 11, no. 2 (2009): 125–31. http://dx.doi.org/10.54386/jam.v11i2.1237.

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Karnataka state is having the second largest rainfed agricultural area in the Country and food production is mainly depending on the south-west monsoon. The State’s mean annual rainfall is found to be in decreasing trend along with its sixteen years cyclic periodicity. The State first half century’s (1901-1950) normal of 1204 mm has been reduced to 1140 mm during second half of the century (1951-2000). Nevertheless, few districts like Bengaluru, Kolar and Tumkur are gaining in their mean annual rainfall and some traditionally heavy rainfall receiving districts like Kodagu, Chikmagalur and Sout
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10

Zhong, Shuping, Jun Ying, and Matthew Collins. "Sources of Uncertainty in the Time of Emergence of Tropical Pacific Climate Change Signal: Role of Internal Variability." Journal of Climate 36, no. 8 (2023): 2535–49. http://dx.doi.org/10.1175/jcli-d-22-0554.1.

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Abstract Determining the time of emergence of anthropogenic climate change signals from natural variability, for both the tropical Pacific mean state and El Niño–Southern Oscillation (ENSO), are critical for early climate warning and adaptation planning. However, there remains considerable uncertainty in estimating those times of emergence in state-of-the-art climate models. In this study, the role of internal variability in the uncertainty of the times of emergence of tropical Pacific annual-mean sea surface temperature (SST) and rainfall, and ENSO-related SST and rainfall are investigated by
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Druckenmiller, M.L., T.A. Moon, R.L. Thoman, et al. "State of the climate 2020 The Arctic." Bulletin of the American Meteorological Society 102, no. 8 (2025): S263—S315. https://doi.org/10.1175/BAMS-D-21-0086.1.

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The Arctic in 2020 was exceptionally warm. The annual mean surface air temperature (SAT)anomaly for land areas poleward of 60°N was 2.1°C above the 1981–2010 average, marking thehighest observed SAT anomaly for the terrestrial Arctic since at least 1900. It was also the seventhconsecutive year with SAT anomalies of more than +1°C higher than the 1981–2010 average. Thiscontinued increase in Arctic SAT is the primary driver for many of the changes observed on apan-Arctic scale and enhanced regionally in any given year. During 2020, for example, warm SATanomalies persisted
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Smith, Jordan W., Emily J. Wilkins, and Yu-Fai Leung. "Attendance trends threaten future operations of America’s state park systems." Proceedings of the National Academy of Sciences 116, no. 26 (2019): 12775–80. http://dx.doi.org/10.1073/pnas.1902314116.

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This research examines how the operating expenditures of America’s state park systems will be affected by a continued growth in attendance consistent with observed trends as well as potential climate futures. We construct a longitudinal panel dataset (1984–2017) describing the operations and characteristics of all 50 state park systems. These data are analyzed with a time-varying stochastic frontier model. Estimates from the model are used to forecast operating expenditures to midcentury under four different scenarios. The first scenario assumes annual attendance within each state park system
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Balling, Robert C., and Patricia Gober. "Climate Variability and Residential Water Use in the City of Phoenix, Arizona." Journal of Applied Meteorology and Climatology 46, no. 7 (2007): 1130–37. http://dx.doi.org/10.1175/jam2518.1.

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Abstract In this investigation, how annual water use in the city of Phoenix, Arizona, was influenced by climatic variables between 1980 and 2004 is examined. Simple correlation coefficients between water use and annual mean temperature, total annual precipitation, and annual mean Palmer hydrological drought index values are +0.55, −0.69, −0.52, respectively, over the study period (annual water use increases with higher temperature, lower precipitation, and drought). Multivariate analyses using monthly climatic data indicate that annual water use is controlled most by the overall state of droug
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14

Schmidt, A., K. S. Carslaw, G. W. Mann, et al. "Importance of tropospheric volcanic aerosol for indirect radiative forcing of climate." Atmospheric Chemistry and Physics 12, no. 16 (2012): 7321–39. http://dx.doi.org/10.5194/acp-12-7321-2012.

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Abstract. Observations and models have shown that continuously degassing volcanoes have a potentially large effect on the natural background aerosol loading and the radiative state of the atmosphere. We use a global aerosol microphysics model to quantify the impact of these volcanic emissions on the cloud albedo radiative forcing under pre-industrial (PI) and present-day (PD) conditions. We find that volcanic degassing increases global annual mean cloud droplet number concentrations by 40% under PI conditions, but by only 10% under PD conditions. Consequently, volcanic degassing causes a globa
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15

Phelan, D. C., D. Parsons, S. N. Lisson, G. K. Holz, and N. D. MacLeod. "Beneficial impacts of climate change on pastoral and broadacre agriculture in cool-temperate Tasmania." Crop and Pasture Science 65, no. 2 (2014): 194. http://dx.doi.org/10.1071/cp12425.

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Although geographically small, Tasmania has a diverse range of regional climates that are affected by different synoptic influences. Consequently, changes in climate variables and climate-change impacts will likely vary in different regions of the state. This study aims to quantify the regional effects of projected climate change on the productivity of rainfed pastoral and wheat crop systems at five sites across Tasmania. Projected climate data for each site were obtained from the Climate Futures for Tasmania project (CFT). Six General Circulation Models were dynamically downscaled to ~10-km g
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16

Schmid, Manuel, Todd A. Ehlers, Christian Werner, Thomas Hickler, and Juan-Pablo Fuentes-Espoz. "Effect of changing vegetation and precipitation on denudation – Part 2: Predicted landscape response to transient climate and vegetation cover over millennial to million-year timescales." Earth Surface Dynamics 6, no. 4 (2018): 859–81. http://dx.doi.org/10.5194/esurf-6-859-2018.

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Abstract. We present a numerical modeling investigation into the interactions between transient climate and vegetation cover with hillslope and detachment limited fluvial processes. Model simulations were designed to investigate topographic patterns and behavior resulting from changing climate and the associated changes in surface vegetation cover. The Landlab surface process model was modified to evaluate the effects of temporal variations in vegetation cover on hillslope diffusion and fluvial erosion. A suite of simulations were conducted to represent present-day climatic conditions and sate
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17

Brandefelt, J., E. Kjellström, J. O. Näslund, G. Strandberg, A. H. L. Voelker, and B. Wohlfarth. "A coupled climate model simulation of Marine Isotope Stage 3 stadial climate." Climate of the Past 7, no. 2 (2011): 649–70. http://dx.doi.org/10.5194/cp-7-649-2011.

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Abstract. We present a coupled global climate model (CGCM) simulation, integrated for 1500 yr to quasi-equilibrium, of a stadial (cold period) within Marine Isotope Stage 3 (MIS 3). The simulated Greenland stadial 12 (GS12; ~44 ka BP) annual global mean surface temperature (Ts) is 5.5 °C lower than in the simulated recent past (RP) climate and 1.3 °C higher than in the simulated Last Glacial Maximum (LGM; 21 ka BP) climate. The simulated GS12 is evaluated against proxy data and previous modelling studies of MIS3 stadial climate. We show that the simulated MIS 3 climate, and hence conclusions d
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18

Schmidt, A., K. S. Carslaw, G. W. Mann, et al. "Importance of tropospheric volcanic aerosol for indirect radiative forcing of climate." Atmospheric Chemistry and Physics Discussions 12, no. 3 (2012): 8009–51. http://dx.doi.org/10.5194/acpd-12-8009-2012.

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Abstract. Observations and models have shown that continuously degassing volcanoes have a potentially large effect on the natural background aerosol loading and the radiative state of the atmosphere. Here, we use a global aerosol microphysics model to quantify the impact of these volcanic emissions on the cloud albedo radiative forcing under pre-industrial (PI) and present-day (PD) conditions. We find that volcanic degassing increases global annual mean cloud droplet number concentrations by 40% under PI conditions, but by only 10% under PD conditions. Consequently, volcanic degassing causes a
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19

Adedapo, Adeniyi. "Trend Analysis of Temperature and Humidity in Kwara State, Nigeria." Journal of Environmental Geography 13, no. 3-4 (2020): 44–50. http://dx.doi.org/10.2478/jengeo-2020-0011.

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Abstract This paper examines the trend analysis of temperature and relative humidity in Kwara State. Climatic data on annual mean temperature (minimum and maximum) and relative humidity for 40 years (1978-2017) were collected from Nigerian Meteorological Agency (NIMET) Ilorin. Semi-Average method, Mann- Kendull statistics and regression method were used to analyse the trend in temperature and relative humidity. The Standardized Anomaly Index (SAI) was also used to examine the changes in temperature and humidity over the period of 1978-2017. The result of the analysis indicates that temperature
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Nikitin, K. A., N. G. Belova, and A. A. Vasiliev. "Thermal Regime of Permafrost on the Western Yamal Under Climate Warming." GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 16, no. 3 (2023): 75–82. http://dx.doi.org/10.24057/2071-9388-2023-2810.

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Climate change observed in the Arctic affects all components of the natural environment, including the state of permafrost. The purpose of this study is to quantify the response of permafrost in various landscapes to changing climatic parameters. The results of long-term field observations (1978-2021) of the thermal regime of permafrost on the Western Yamal are presented. Along with the increase in mean annual air temperatures, the mean annual ground temperature over the past 43 years has increased by 1.5-2.2°C. The maximum increase of permafrost temperature values is observed on flat and poly
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ADEYEYE, O. A., O. T. ONIFADE, and O. A. ADESINA. "COTTON FARMERS’ PERCEPTION ON CLIMATE CHANGE AND ADAPTATION STRATEGIES IN OGUN STATE, NIGERIA." Journal of Agricultural Science and Environment 15, no. 2 (2020): 47–58. http://dx.doi.org/10.51406/jagse.v15i2.1975.

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Climate change has been a major threat to agriculture in Nigeria. This study was carried out in Imeko Afon Local Government Area. Purposive selection of all practicing cotton farmers (54) at the time of survey was made from the study area. The mean age of respondents is 56years. The household size is 7persons and the average annual income is N9, 972.00k. The mean score of famers’ perception about the climate change and its effects on cotton production is 2.62. Farmers’ stated that there is an increase temperature due to change in climatic condition (Ẍ= 3.45, S.D ± 1.152), and fluctuation in ra
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Olowojoba, Success O., Ezekiel O. Eguarojie, and Moses A. Salami. "Spatial Analysis of Flood Prone Areas in Ilaje Local Government Arae, in Ondo State, Nigeria." Asian Journal of Applied Science and Technology (AJAST) 6, no. 3 (2022): 76–85. https://doi.org/10.38177/ajast.2022.6309.

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Flood is one of the natural disaster known to be part of the earth biophysical processes, which its occurrence can be devastating; due to mostly anthropogenic activities and climatological factors. The aim of the research is to identify flood prone areas using geospatial techniques and the specific objectives are to carry out terrain analysis of the study area and to generate flood vulnerability map of the study area. The study analyzed rain fall data; soil map, the drainage system and Shuttle Radar Topographic Mission (SRTM 30m) of the area. A geographic positioning system (GPS) device was us
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Nema, Manish K., Deepak Khare, Jan Adamowski, and Surendra K. Chandniha. "Spatio-temporal analysis of rainfall trends in Chhattisgarh State, Central India over the last 115 years." Journal of Water and Land Development 36, no. 1 (2018): 117–28. http://dx.doi.org/10.2478/jwld-2018-0012.

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AbstractA quantitative and qualitative understanding of the anticipated climate-change-driven multi-scale spatio-temporal shifts in precipitation and attendant river flows is crucial to the development of water resources management approaches capable of sustaining and even improving the ecological and socioeconomic viability of rain-fed agricultural regions. A set of homogeneity tests for change point detection, non-parametric trend tests, and the Sen’s slope estimator were applied to long-term gridded rainfall records of 27 newly formed districts in Chhattisgarh State, India. Illustrating the
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Salami, Moses A., and Okoh S. Ikechukwu. "Flood Vulnerability Mapping using Geospatial Techniques: Case Study of Lagos State, Nigeria." Asian Journal of Applied Science and Technology (AJAST) 6, no. 4 (2022): 81–88. https://doi.org/10.38177/ajast.2022.6408.

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Flood is one of the natural disaster known to be part of the earth biophysical processes, which its occurrence can be devastating; due to mostly anthropogenic activities and climatological factors. The aim of the research is to identify and map the extent at which the impact of flood due to intense rainfall and rise in water in the study area using geospatial techniques and the specific objectives are to carry out terrain analysis of the study area and to generate flood indicator maps of the study area. The study analyzed rain fall data;, the drainage system and Shuttle Radar Topographic Missi
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25

Brandefelt, J., E. Kjellström, J. O. Näslund, G. Strandberg, A. H. L. Voelker, and B. Wohlfarth. "A coupled climate model simulation of Marine Isotope Stage 3 stadial climate." Climate of the Past Discussions 7, no. 1 (2011): 79–118. http://dx.doi.org/10.5194/cpd-7-79-2011.

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Abstract. We present a coupled global climate model (CGCM) simulation, integrated for 1500 years to quasi-equilibrium, of a stadial (cold period) within Marine Isotope Stage 3 (MIS 3). The simulated Greenland stadial 12 (GS12; ~44 ka BP) annual global mean surface temperature (Ts) is 5.5 °C higher than in the simulated recent past (RP) climate and 1.3 °C lower than in the simulated Last Glacial Maximum (LGM; 21 ka BP) climate. The simulated GS12 climate is evaluated against proxy data of sea surface temperature (SST). Simulated SSTs fall within the uncertainty range of the proxy SSTs for 30–50
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H. Singh, M. G. Jadhav, A. M. Khobragade, D. S. Perke, and P. Kumar. "Rainfall Trend Analysis Using Mann-Kendall and Sen’s Slope Test Method in Nanded District of Maharashtra State." Journal of Agriculture Research and Technology 49, no. 03 (2024): 421–25. https://doi.org/10.56228/jart.2024.49307.

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Climate change is major concern globally particularly for rain fed developing countries, as shift in the amount and intensity of rainfall negatively impacts all sectors of these nations. The studywas carried out by using mann-kendall and sen’s slope test method for tehsil wise annual average rainfall over Nanded district of Maharashtra state of India. The result revealed that the mean annual highest rainfall 1005.4 mm with a standard deviation 252.2 mm and coefficient of variation was 25.1% was recorded at Kinvat tehsil and the lowest mean annual rainfall recorded was 769.9 mm at Naigaon tehsi
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Orji, Mary Onyinyechi, Chinwe Isibor, and Maurice Ozor. "Assessment of Perception to Climate Change and Mitigation Response among Smallholder Rice Farmers in Ebonyi State of Nigeria." International Journal of Advanced Academic Research 10, no. 6 (2024): 182–95. https://doi.org/10.5281/zenodo.12793956.

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<em>The study assessed the perception to climate change and mitigation response among small holder rice farmers in Ebonyi State of Nigeria. The study used multistage sampling procedure in selection of 254 respondents for the study. Data were collected using structured questionnaire administered to 254 selected rice farmers. </em><em>Data were analyzed using a combination of analytical tools such as descriptive statistics, multiple regression and factor analysis. Result showed that majority (66.1%) of the respondents were male with mean age of 41 years. Majority (70.1%) of the respondents were
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Park, W., N. Keenlyside, M. Latif, et al. "Tropical Pacific Climate and Its Response to Global Warming in the Kiel Climate Model." Journal of Climate 22, no. 1 (2009): 71–92. http://dx.doi.org/10.1175/2008jcli2261.1.

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Abstract A new, non-flux-corrected, global climate model is introduced, the Kiel Climate Model (KCM), which will be used to study internal climate variability from interannual to millennial time scales and climate predictability of the first and second kind. The version described here is a coarse-resolution version that will be employed in extended-range integrations of several millennia. KCM’s performance in the tropical Pacific with respect to mean state, annual cycle, and El Niño–Southern Oscillation (ENSO) is described. Additionally, the tropical Pacific response to global warming is studi
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Donohoe, Aaron, John Marshall, David Ferreira, and David Mcgee. "The Relationship between ITCZ Location and Cross-Equatorial Atmospheric Heat Transport: From the Seasonal Cycle to the Last Glacial Maximum." Journal of Climate 26, no. 11 (2013): 3597–618. http://dx.doi.org/10.1175/jcli-d-12-00467.1.

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Abstract The authors quantify the relationship between the location of the intertropical convergence zone (ITCZ) and the atmospheric heat transport across the equator (AHTEQ) in climate models and in observations. The observed zonal mean ITCZ location varies from 5.3°S in the boreal winter to 7.2°N in the boreal summer with an annual mean position of 1.65°N while the AHTEQ varies from 2.1 PW northward in the boreal winter to 2.3 PW southward in the boreal summer with an annual mean of 0.1 PW southward. Seasonal variations in the ITCZ location and AHTEQ are highly anticorrelated in the observat
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Varlamov, Stepan P., Yuri B. Skachkov, and Pavel N. Skryabin. "Evolution of the thermal state of permafrost under climate warming in Central Yakutia." Holocene 29, no. 9 (2019): 1401–10. http://dx.doi.org/10.1177/0959683619855959.

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The relevance of the problem under review is explained by the need to study the thermal response of permafrost to the modern climate change. Evolution of the thermal state of grounds has been studied with a view to evaluate the effects of modern climate warming on permafrost in Central Yakutia. The leading method to study this problem is the arrangement and performance of long-term monitoring observations of the permafrost thermal state that enable quantitative evaluation of the thermal response of upper permafrost layers to climatic fluctuations of recent decades. The analysis of long-term re
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Eyong Eteng Eyong, Olakunle Rufus Oladosu, Michael Nnaemeka Ihenacho, et al. "A GIS-based impact assessment of vegetation on rainfall patterns in cross river state, Nigeria." World Journal of Advanced Research and Reviews 22, no. 3 (2024): 987–1001. http://dx.doi.org/10.30574/wjarr.2024.22.3.1799.

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Vegetation dynamics are the phenological metrics variations and transformations in the vegetation of different land cover types over a particular region. This study investigated the spatio-temporal vegetation dynamics employing NDVI, and its response to climate variability (rainfall) between 1988-2018 with the specific objective of determining the rainfall pattern over 40years, determining land use change trend, investigating the annual NDVI trend, and analyzing the correlation between NDVI, land use and rainfall in the study area. The study utilizes annual land use land cover analysis and lan
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Eyong, Eteng Eyong, Rufus Oladosu Olakunle, Nnaemeka Ihenacho Michael, et al. "A GIS-based impact assessment of vegetation on rainfall patterns in cross river state, Nigeria." World Journal of Advanced Research and Reviews 22, no. 3 (2024): 987–1001. https://doi.org/10.5281/zenodo.14739302.

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Vegetation dynamics are the phenological metrics variations and transformations in the vegetation of different land cover types over a particular region. This study investigated the spatio-temporal vegetation dynamics employing NDVI, and its response to climate variability (rainfall) between 1988-2018 with the specific objective of determining the rainfall pattern over 40years, determining land use change trend, investigating the annual NDVI trend, and analyzing the correlation between NDVI, land use and rainfall in the study area. The study utilizes annual land use land cover analysis and lan
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Okon, Dr Michael Akaninyene. "Evaluation of desert encroachment and atmospheric warming southwards of Nigeria." F1000Research 13 (November 22, 2024): 1411. http://dx.doi.org/10.12688/f1000research.157608.1.

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Nigeria is located south of the Sahara and is confronted with rapid desertification, with severe impacts in northern Nigeria with signs of desert encroachment and atmospheric warming southward of Nigeria. Therefore, this study assessed the rate of desert encroachment and atmospheric warming southwards in Nigeria. The climate of Imo State was studied using Nigerian Meteorological Agency (NIMET)data. The climatic variables studied were annual rainfall, maximum and minimum annual temperatures. The mean temperature was computed from the temperature data. Data from the 30-year period from 1987 to 2
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Hughes, Philip D., and Roger J. Braithwaite. "Application of a degree-day model to reconstruct Pleistocene glacial climates." Quaternary Research 69, no. 1 (2008): 110–16. http://dx.doi.org/10.1016/j.yqres.2007.10.008.

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There is empirical evidence of a nonlinear relation between annual precipitation, or accumulation, and summer mean temperature at the equilibrium line altitude (ELA) on glaciers around the world. The degree-day model gives a similar relation between accumulation and summer temperature, although instead of a single universal curve there is a family of curves depending upon the annual temperature range. Furthermore, the degree-day model also gives nonlinear relations between accumulation and annual mean temperature. Thus, estimations of accumulation can be made from both summer and annual temper
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Emeghara, Ursulla, Benson Osikabor, Mathias Umunna, and Abass Olakulehin. "Climate change adaptation practices of rice farmers in Borgu local government area of Niger state, Nigeria." Agricultural Sciences 17, no. 44 (2025): 135–43. https://doi.org/10.22620/agrisci.2025.44.014.

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The study assessed climate change adaptation practices among rice farmers in Borgu Local Government Area, Niger State, Nigeria. An interview schedule was used to collect data from eighty respondents who were selected through the multi-stage sampling technique. Descriptive statistics were used to describe the data while the Pearson’s Product Moment Correlation (PPMC) was used to determine the relationship between the variables. Results of the findings indicated that mean farm size was 1.4 ha while mean rice output was 5310 kg. Mean annual income from rice farm was ₦636,206 and average years of
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Fedhasa, Benti. "Spatiotemporal Attribution and Trends of Climate Variables in Iluababora Zone, Oromia National Regional State, Ethiopia." Journal of Science and Sustainable Development 7, no. 2 (2019): 52–64. https://doi.org/10.20372/au.jssd.7.2.2019.0137.

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The environmental diversity associated climatic variables in the micro environments are anticipated to change over times. This study aimed to examine precipitation concentration and anomaly indices, and trends of climatic variables over micro-environments of Iluabbabora zone. Climatic data were obtained from NASA&rsquo;s dataset, recorded from 1981&ndash;2018. Precipitation concentration indices were estimated and interpolated using an inverse distance weighting. The frequency and percentile of drier and wetter periods was analyzed using standardized precipitation anomaly index model. The Mann
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Kageyama, Masa, Sandy P. Harrison, Marie-L. Kapsch, et al. "The PMIP4 Last Glacial Maximum experiments: preliminary results and comparison with the PMIP3 simulations." Climate of the Past 17, no. 3 (2021): 1065–89. http://dx.doi.org/10.5194/cp-17-1065-2021.

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Abstract. The Last Glacial Maximum (LGM, ∼ 21 000 years ago) has been a major focus for evaluating how well state-of-the-art climate models simulate climate changes as large as those expected in the future using paleoclimate reconstructions. A new generation of climate models has been used to generate LGM simulations as part of the Paleoclimate Modelling Intercomparison Project (PMIP) contribution to the Coupled Model Intercomparison Project (CMIP). Here, we provide a preliminary analysis and evaluation of the results of these LGM experiments (PMIP4, most of which are PMIP4-CMIP6) and compare
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Loukas, Athanasios, and Michael C. Quick. "The Effect of Climate Change on Floods in British Columbia." Hydrology Research 30, no. 3 (1999): 231–56. http://dx.doi.org/10.2166/nh.1999.0013.

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A hydrological modelling of the flood response of two watersheds to climate change are presented. The two study watersheds are the Upper Campbell and the Illecillewaet watersheds located in British Columbia. The first watershed is a maritime watershed located on the east slopes of the Vancouver Island mountains whereas the second watershed is located in the Selkirk Mountains in Eastern British Columbia. The Canadian Climate Centre General Circulation Model (CCC GCM) has been used for the estimation of the effect of the climate change on meteorological parameters. The CCC GCM is a steady state
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Price, David T., R. I. Alfaro, K. J. Brown, et al. "Anticipating the consequences of climate change for Canada’s boreal forest ecosystems." Environmental Reviews 21, no. 4 (2013): 322–65. http://dx.doi.org/10.1139/er-2013-0042.

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Canadian boreal woodlands and forests cover approximately 3.09 × 106 km2, located within a larger boreal zone characterized by cool summers and long cold winters. Warming since the 1850s, increases in annual mean temperature of at least 2 °C between 2000 and 2050 are highly probable. Annual mean temperatures across the Canadian boreal zone could be 4–5 °C warmer than today’s by 2100. All aspects of boreal forest ecosystem function are likely to be affected. Further, several potential “tipping elements” — where exposure to increasing changes in climate may trigger distinct shifts in ecosystem s
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Ojo, Ibukun Elizabeth, Ayorinde Ebenezer Kolawole, Ayotunde Olayinka Owolabi, et al. "Use of climate-smart agricultural practices among smallholder farmers in Ogun State, Nigeria." Journal of Agricultural Extension 29, no. 1 (2024): 209–17. http://dx.doi.org/10.4314/jae.v29i1.24s.

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The study assessed the use of climate-smart agricultural practices among smallholder farmers in Ogun state, Nigeria. A multistage sampling procedure was used to select 180 respondents. Data collected were analysed using frequency, percentage, mean, and Pearson product-moment correlation. The majority (70.6%) of the respondents indicated that the source of information on climate-smart agricultural practices was extension agents. All (100.0%) indicated they use minimum tillage, crop rotation, and mulching respectively, cover crop (81.1%), mixed cropping (82.2%), and integrated pest management (8
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Li, Zhi, and Jiming Jin. "Evaluating climate change impacts on streamflow variability based on a multisite multivariate GCM downscaling method in the Jing River of China." Hydrology and Earth System Sciences 21, no. 11 (2017): 5531–46. http://dx.doi.org/10.5194/hess-21-5531-2017.

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Abstract. Projected hydrological variability is important for future resource and hazard management of water supplies because changes in hydrological variability can cause more disasters than changes in the mean state. However, climate change scenarios downscaled from Earth System Models (ESMs) at single sites cannot meet the requirements of distributed hydrologic models for simulating hydrological variability. This study developed multisite multivariate climate change scenarios via three steps: (i) spatial downscaling of ESMs using a transfer function method, (ii) temporal downscaling of ESMs
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Wang, Hong, Junguo Liu, Megan Klaar, Aifang Chen, Lukas Gudmundsson, and Joseph Holden. "Anthropogenic climate change has influenced global river flow seasonality." Science 383, no. 6686 (2024): 1009–14. http://dx.doi.org/10.1126/science.adi9501.

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Riverine ecosystems have adapted to natural discharge variations across seasons. However, evidence suggesting that climate change has already impacted magnitudes of river flow seasonality is limited to local studies, mainly focusing on changes of mean or extreme flows. This study introduces the use of apportionment entropy as a robust measure to assess flow-volume nonuniformity across seasons, enabling a global analysis. We found that ~21% of long-term river gauging stations exhibit significant alterations in seasonal flow distributions, but two-thirds of these are unrelated to trends in annua
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Ajibade, Obasanjo, O. Jelili Yusuf, Felicia M. Olooto, and Lateef L. Adefalu. "Factors influencing resilience building for climate change among rice farmers in Niger State, Nigeria." Ondo University Journal of Agriculture and Social Sciences 1, no. 1 (2023): 8–14. https://doi.org/10.52493/j.oujas.2023.1.89.

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This study identified factors influencing resilience-building mechanisms to climate change amongst rice farmers in Niger State, Nigeria. Two-stage sampling procedure was used to select 347 rice farmers. A survey research design was used with the aid of an interview schedule to collect primary data. Data collected were analysed using frequency, percentage, mean, and regression tools. Results showed that the use of efficient irrigation infrastructures (x̄=3.71), planting early maturity varieties (x̄=3.63) and planting date/season adjustments (x̄=3.64) were the leading resilience-building mechani
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Tukimat, Nurul Nadrah Aqilah, and Sobri Harun. "Climate change impact on rainfall and temperature in Muda irrigation area using multicorrelation matrix and downscaling method." Journal of Water and Climate Change 6, no. 3 (2015): 647–60. http://dx.doi.org/10.2166/wcc.2015.015.

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Statistical downscaling model was used to generate 30-year climate trend of Kedah – the state which has the largest cultivation area in Malaysia, resulting from climate changes. To obtain a better predictors set, multicorrelation matrix analysis was added in the climate model as a screening tool to explain the multiple correlation relationship among 26 predictors and 20 predictands. The performance of the predictor set was evaluated statistically in terms of mean absolute error, mean square error, and standard deviation. The simulation results depict the climatic changing trend in this region
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Song, Zhaoyang, Mojib Latif, Wonsun Park, Uta Krebs-Kanzow, and Birgit Schneider. "Influence of seaway changes during the Pliocene on tropical Pacific climate in the Kiel climate model: mean state, annual cycle, ENSO, and their interactions." Climate Dynamics 48, no. 11-12 (2016): 3725–40. http://dx.doi.org/10.1007/s00382-016-3298-x.

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46

Koppenborg, Florentine, and Ulv Hanssen. "Japan’s Climate Change Discourse: Toward Climate Securitisation?" Politics and Governance 9, no. 4 (2021): 53–64. http://dx.doi.org/10.17645/pag.v9i4.4419.

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This article situates Japan in the international climate security debate by analysing competing climate change discourses. In 2020, for the first time, the Japanese Ministry of the Environment included the term “climate crisis” (&lt;em&gt;kikō kiki&lt;/em&gt;) in its annual white paper, and the Japanese parliament adopted a “climate emergency declaration” (&lt;em&gt;kikō hijō jitai sengen&lt;/em&gt;). Does this mean that Japan’s climate discourse is turning toward the securitisation of climate change? Drawing on securitisation theory, this article investigates whether we are seeing the emergen
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47

Suckling, Emma B., and Leonard A. Smith. "An Evaluation of Decadal Probability Forecasts from State-of-the-Art Climate Models." Journal of Climate 26, no. 23 (2013): 9334–47. http://dx.doi.org/10.1175/jcli-d-12-00485.1.

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While state-of-the-art models of Earth's climate system have improved tremendously over the last 20 years, nontrivial structural flaws still hinder their ability to forecast the decadal dynamics of the Earth system realistically. Contrasting the skill of these models not only with each other but also with empirical models can reveal the space and time scales on which simulation models exploit their physical basis effectively and quantify their ability to add information to operational forecasts. The skill of decadal probabilistic hindcasts for annual global-mean and regional-mean temperatures
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48

Cardoso, Iulli Pitone, Tirzah Moreira Siqueira, Luis Carlos Timm, Aryane Araujo Rodrigues, and André Becker Nunes. "Analysis of average annual temperatures and rainfall in southern region of the state of Rio Grande do Sul, Brazil." Revista Brasileira de Ciências Ambientais 57, no. 1 (2022): 58–71. http://dx.doi.org/10.5327/z2176-94781204.

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This work aimed to analyze the average temperature and rainfall in the Southern and Steppe regions of the State of Rio Grande do Sul, Brazil, obtained by three global climate models regionalized by the Eta model (CANESM2, HADGEM2-ES and MIROC5) for the historical period, and two future climate scenarios (RCP 4.5 and RCP 8.5), subdivided into three periods: F1 (2006-2040), F2 (2041-2070), and F3 (2071-2099). The analysis was conducted by applying the trend tests Mann Kendall’s, Sen’s Slope and Pettitt’s to the dataset. The study noted an increase in temperature, and that the highest temperature
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DG, Musa, David LD, VN Ojeh, Ahmed YM, Yusuf MB, and Hauwa A. "Climate Change Vulnerability and Adaptation Strategies in Artisanal and Small-scale Mining Communities in the Central Zone of Taraba State, Nigeria." International Journal of Multidisciplinary Research and Growth Evaluation 6, no. 4 (2025): 567–71. https://doi.org/10.54660/.ijmrge.2025.6.4.567-571.

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The study was conducted in the Central Zone of Taraba State, located in northeastern Nigeria, between latitudes 6°30'N and 8°30'N and longitudes 10°00'E and 11°30'E. This region includes key Local Government Areas (LGAs) such as Bali, Gashaka, and Sardauna, where artisanal and small-scale mining (ASM) activities are extensively practiced. Ecologically, the zone spans two major eco-regions: the Guinea Savanna lowlands and the montane grasslands of the Mambilla Plateau, the latter rising to altitudes above 1,500 meters above sea level. The climate is tropical sub-humid, characterized by a distin
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50

Fealy, Rowan, and John Sweeney. "Statistical downscaling of temperature, radiation and potential evapotranspiration to produce a multiple GCM ensemble mean for a selection of sites in Ireland." Irish Geography 41, no. 1 (2014): 1–27. http://dx.doi.org/10.55650/igj.2008.107.

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Irish climate is experiencing changes which have been found to be consistent with those occurring at a global scale. Consequently there is now growing confidence that these changes are largely attributable to global warming. Based on the data from four long-term monitoring, synoptic stations, between 1890 and 2004, mean annual temperatures in Ireland rose by 0.7°C. In the absence of strict emissions controls, a doubling of global atmospheric concentrations of CO2 is likely by the end of the twenty-first century. As a consequence, global temperatures are projected to increase by between 1.8°C a
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