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Journal articles on the topic 'Rainfall and temperature variability'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Birara, Hailu, R. P. Pandey, and S. K. Mishra. "Trend and variability analysis of rainfall and temperature in the Tana basin region, Ethiopia." Journal of Water and Climate Change 9, no. 3 (2018): 555–69. http://dx.doi.org/10.2166/wcc.2018.080.

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Abstract Global warming and climate variability are emerging as the foremost environmental problems in the 21st century, particularly in developing countries. Ethiopia is one of the countries located in the sub-Sahara region and climate variability has a significant impact on the economy of the country. The aim of this study is to characterize annual and seasonal rainfall and annual temperature variability, and to measure trends on both the spatial and the temporal scale for ten selected stations in the Tana basin region, Ethiopia. The Mann–Kendall test and Sen's slope estimator were used to a

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2

Ndlovu, Mendy, Alistair D. Clulow, Michael J. Savage, Luxon Nhamo, James Magidi, and Tafadzwanashe Mabhaudhi. "An Assessment of the Impacts of Climate Variability and Change in KwaZulu-Natal Province, South Africa." Atmosphere 12, no. 4 (2021): 427. http://dx.doi.org/10.3390/atmos12040427.

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Rainfall and air temperature variability pose the greatest risk to environmental change. Past trends in rainfall and air temperature facilitate projecting future climate changes for informed policy responses. We used a combination of the normalised difference vegetation index (NDVI) and observed data from 1968 to 2017 to assess changes in rainfall, moisture stress, and air temperature variability over time on bioclimatic regions of KwaZulu-Natal (KZN) Province, South Africa. Indicators used included consecutive dry days (CDDs), consecutive wet days (CWDs), very heavy rainfall days (R20), month

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Orke, Yoseph Arba, and Ming-Hsu Li. "Hydroclimatic Variability in the Bilate Watershed, Ethiopia." Climate 9, no. 6 (2021): 98. http://dx.doi.org/10.3390/cli9060098.

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It is important to understand variations in hydro-meteorological variables to provide crucial information for water resource management and agricultural operation. This study aims to provide comprehensive investigations of hydroclimatic variability in the Bilate watershed for the period 1986 to 2015. Coefficient of variation (CV) and the standardized anomaly index (SAI) were used to assess the variability of rainfall, temperature, and streamflow. Changing point detection, the Mann–Kendell test, and the Sen’s slope estimator were employed to detect shifting points and trends, respectively. Rain

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Ofgeha, Gemechu Yigezu, and Muluneh Woldetsadik Abshire. "Spatio-temporal Variability and Trends in Rainfall and Temperature in Anger watershed, Southwestern Ethiopia." Journal of Applied Geospatial Information 5, no. 1 (2021): 462–72. http://dx.doi.org/10.30871/jagi.v5i1.2825.

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Insights to broadly argued research gap on lack of climate studies at micro-scale considering unique features of an area, this paper intended to examine agro-ecological level spatio-temporal trends and variability in rainfall and temperature in Anger watershed of southwestern Ethiopia. The gridded data managed by the Ethiopia National Meteorological Services Agency (NMSA) for 1983-2018 were used. The Mann-Kendall test for trend analysis and different variability measures were used. Questionnaire and FGD data on community perceptions gathered from 214 households and elders were analysed descrip

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Belay, Abrham, Teferi Demissie, John W. Recha, et al. "Analysis of Climate Variability and Trends in Southern Ethiopia." Climate 9, no. 6 (2021): 96. http://dx.doi.org/10.3390/cli9060096.

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This study investigated the trends and variability of seasonal and annual rainfall and temperature data over southern Ethiopia using time series analysis for the period 1983–2016. Standard Anomaly Index (SAI), Coefficient of Variation (CV), Precipitations Concentration Index (PCI), and Standard Precipitation Index (SPI) were used to examine rainfall variability and develop drought indices over southern Ethiopia. Temporal changes of rainfall trends over the study period were detected using Mann Kendall (MK) trend test and Sen’s slope estimator. The results showed that the region experienced con

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Mmbando, Godfrey, and Michael Kleyer. "Mapping Precipitation, Temperature, and Evapotranspiration in the Mkomazi River Basin, Tanzania." Climate 6, no. 3 (2018): 63. http://dx.doi.org/10.3390/cli6030063.

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It is still a challenge to provide spatially explicit predictions of climate parameters in African regions of complex relief, where meteorological information is scarce. Here we predict rainfall, temperature, and reference evapotranspiration (ETo) for the southern Mkomazi River Basin in Northeastern Tanzania, East Africa, by means of regression-based, digital elevation models (DEM) at 90 m spatial-resolution and geographic information systems (GIS) techniques. We mapped rainfall for the period 1964–2010. The models accounted for orographic factors which strongly influenced the spatial variabil

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Nouaceur, Zeineddine, Ovidiu Murărescu, and George Murătoreanu. "Rainfall Variability and Trend Analysis of Multiannual Rainfall in Romanian Plain." Annals of Valahia University of Targoviste, Geographical Series 17, no. 2 (2017): 124–44. http://dx.doi.org/10.1515/avutgs-2017-0012.

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AbstractThe IPCC climate models predict, for the Central Europe, are for climate changes, being seen variability of temperature, with a growing trend of 1-2,5° C (with 1° C for alpine zone – Carpathians and 2-2,5° C for plains). Current observations in the Romanian plain are not consistent, with an existence of a multiannual variability of temperature and precipitations depending on cyclonal and anti-ciclonal activity. The research is based on calculation of reduced centered index, also the graphical chronological method in information processing (MGCTI) of „Bertin Matrix” type, to show curren

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Fay, P. A., J. M. Blair, M. D. Smith, J. B. Nippert, J. D. Carlisle, and A. K. Knapp. "Relative effects of precipitation variability and warming on grassland ecosystem function." Biogeosciences Discussions 8, no. 4 (2011): 6859–900. http://dx.doi.org/10.5194/bgd-8-6859-2011.

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Abstract. Precipitation and temperature drive many aspects of terrestrial ecosystem function. Climate change scenarios predict increasing precipitation variability and temperature, and long term experiments are required to evaluate the ecosystem consequences of interannual climate variation, increased growing season (intra-annual) rainfall variability, and warming. We present results from an experiment applying increased growing season rainfall variability and year round warming in native perennial grassland. During ten years of study, total growing season rainfall varied 2-fold, and we found

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Fay, P. A., J. M. Blair, M. D. Smith, J. B. Nippert, J. D. Carlisle, and A. K. Knapp. "Relative effects of precipitation variability and warming on tallgrass prairie ecosystem function." Biogeosciences 8, no. 10 (2011): 3053–68. http://dx.doi.org/10.5194/bg-8-3053-2011.

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Abstract. Precipitation and temperature drive many aspects of terrestrial ecosystem function. Climate change scenarios predict increasing precipitation variability and temperature, and long term experiments are required to evaluate the ecosystem consequences of interannual climate variation, increased growing season (intra-annual) rainfall variability, and warming. We present results from an experiment applying increased growing season rainfall variability and year round warming in native tallgrass prairie. During ten years of study, total growing season rainfall varied 2-fold, and we found ~5

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10

Mekanik, F., and M. A. Imteaz. "Variability of cool seasonal rainfall associated with Indo-Pacific climate modes: case study of Victoria, Australia." Journal of Water and Climate Change 9, no. 3 (2018): 584–97. http://dx.doi.org/10.2166/wcc.2018.146.

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Abstract This study focused on diagnosing the relative and independent role of El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) on austral cool seasonal rainfall by stratifying the cool seasonal rainfall into winter (June–August) and spring (September–November). Partial regression and classification analysis was used to investigate the effect of the climate modes on rainfall in the state of Victoria in southeast Australia. Partial regression analyses revealed that when the influence of IOD is removed from ENSO, sea surface temperature (SST) anomalies in the Pacific Ocean have

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11

Santosa, Edi, Ginanjar Pramudya Sakti, Muhamad Zainul Fattah, Sofyan Zaman, and Ade Wahjar. "Cocoa Production Stability in Relation to Changing Rainfall and Temperature in East Java, Indonesia." Journal of Tropical Crop Science 5, no. 1 (2018): 6–17. http://dx.doi.org/10.29244/jtcs.5.1.6-17.

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Climate change as indicated by rising temperature and changing rainfall pattern has been known to affect cacao production in many production countries. However, studies on the effects of rainfall and temperature variability on the cacao production are rarely reported in Indonesia. Hence, the objective of this study is to evaluate the stability of cocoa production in relation to rainfall and temperature variability in order to develop sustainable production under climate change scenario. Research was conducted at a state owned company in Jember District, East Java, Indonesia from February to Ju

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Alhamshry, Asmaa, Ayele Almaw Fenta, Hiroshi Yasuda, Reiji Kimura, and Katsuyuki Shimizu. "Seasonal Rainfall Variability in Ethiopia and Its Long-Term Link to Global Sea Surface Temperatures." Water 12, no. 1 (2019): 55. http://dx.doi.org/10.3390/w12010055.

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Investigating the influence of sea surface temperatures (SSTs) on seasonal rainfall is a crucial factor for managing Ethiopian water resources. For this purpose, SST and rainfall data were used to study a wide range of inhomogeneous areas in Ethiopia with uneven distribution of rainfall for both summer (1951–2015) and spring (1951–2000) seasons. Firstly, a preliminary subdivision of rainfall grid points into zones was applied depending on spatial homogeneity and seasonality of rainfall. This introduced new clusters, including nine zones for summer rainfall peak (July/August) and five zones for

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13

Wang, Hui, Rong Fu, Arun Kumar, and Wenhong Li. "Intensification of Summer Rainfall Variability in the Southeastern United States during Recent Decades." Journal of Hydrometeorology 11, no. 4 (2010): 1007–18. http://dx.doi.org/10.1175/2010jhm1229.1.

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Abstract The variability of summer precipitation in the southeastern United States is examined in this study using 60-yr (1948–2007) rainfall data. The Southeast summer rainfalls exhibited higher interannual variability with more intense summer droughts and anomalous wetness in the recent 30 years (1978–2007) than in the prior 30 years (1948–77). Such intensification of summer rainfall variability was consistent with a decrease of light (0.1–1 mm day−1) and medium (1–10 mm day−1) rainfall events during extremely dry summers and an increase of heavy (&gt;10 mm day−1) rainfall events in extr

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14

Popoola, Oladimeji Samuel, Sunday Adesola Ajayi, Adebayo Eludoyin, Gbenga Oladehinde, and Kehinde Popoola. "Rainfall and temperature variability across selected Ecological Regions in Nigeria." Interdisciplinary Environmental Review 20, no. 1 (2020): 1. http://dx.doi.org/10.1504/ier.2020.10033536.

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Popoola, Kehinde Olayinka, Adebayo Oluwole Eludoyin, Gbenga John Oladehinde, Sunday Adesola Ajayi, and Oladimeji Samuel Popoola. "Rainfall and temperature variability across selected ecological regions in Nigeria." Interdisciplinary Environmental Review 20, no. 3/4 (2020): 311. http://dx.doi.org/10.1504/ier.2020.112598.

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16

Myeya, Helena Elias. "Recent Temperature and Rainfall Characteristics in Dodoma Region, Central Tanzania (1961 – 2013)." Ghana Journal of Geography 13, no. 1 (2021): 63–80. http://dx.doi.org/10.4314/gjg.v13i1.4.

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This paper presents the recent temperature and rainfall characteristics in Dodoma region, central Tanzania. The study used archival temperature and rainfall data for the past 53 years (1961 – 2013). Simple linear trend analysis and Mann-Kendall test were used to establish and test for rainfall and temperature trends through Microsoft Excel (2010) and Statistical Package for Social Sciences (version 20). Results for both minimum and maximum temperature indicate a significant increased trend (p=0.000, p=0.001) respectively at 0.05 significance level. Conversely, non-significant decreasing and in

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17

Mohd Wani, John, V. K. Sarda, and Sanjay K. Jain. "Assessment of Trends and Variability of Rainfall and Temperature for the District of Mandi in Himachal Pradesh, India." Slovak Journal of Civil Engineering 25, no. 3 (2017): 15–22. http://dx.doi.org/10.1515/sjce-2017-0014.

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Abstract Climate variability, particularly, that of the annual air temperature and precipitation, has received a great deal of attention worldwide. The magnitude of the variability of the factors changes according to the locations. The present study focuses on detecting the trends and variability in the annual temperature and rainfall for the district of Mandi in Himachal Pradesh, India. This study used annual and monsoon time series data for the time period 1981-2010 and modified the Mann-Kendall test and Sen's slope estimator in analyzing the problem. The results of the analysis indicate tha

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18

Hadisu Bello, Abubakar, Mary Scholes, and Solomon W. Newete. "Impacts of Agroclimatic Variability on Maize Production in the Setsoto Municipality in the Free State Province, South Africa." Climate 8, no. 12 (2020): 147. http://dx.doi.org/10.3390/cli8120147.

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The majority of people in South Africa eat maize, which is grown as a rain-fed crop in the summer rainfall areas of the country, as their staple food. The country is usually food secure except in drought years, which are expected to increase in severity and frequency. This study investigated the impacts of rainfall and minimum and maximum temperatures on maize yield in the Setsoto municipality of the Free State province of South Africa from 1985 to 2016. The variation of the agroclimatic variables, including the Palmer stress diversity index (PSDI), was investigated over the growing period (Oc

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19

Huang, Ping. "Time-Varying Response of ENSO-Induced Tropical Pacific Rainfall to Global Warming in CMIP5 Models. Part I: Multimodel Ensemble Results." Journal of Climate 29, no. 16 (2016): 5763–78. http://dx.doi.org/10.1175/jcli-d-16-0058.1.

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Abstract El Niño–Southern Oscillation (ENSO) is one of the most important drivers of climatic variability on the global scale. Much of this variability arises in response to ENSO-driven changes in tropical Pacific rainfall. Previous research has shown that the ENSO-driven tropical Pacific rainfall variability can shift east and intensify in response to global warming, even if ENSO-related SST variability remains unchanged. Here, the twenty-first century changes in ENSO-driven tropical Pacific rainfall variability in 32 CMIP5 models forced under the representative concentration pathway 8.5 (RCP

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20

Koech, Nancy Chemutai, Sammy C. Letema, and James Kibii Koske. "Impact of Rainfall Variability on Rural Tea Roads in Kericho, Kenya." East African Journal of Environment and Natural Resources 3, no. 1 (2021): 38–48. http://dx.doi.org/10.37284/eajenr.3.1.285.

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Climate variability is a global phenomenon that is posing a threat to the infrastructure and agricultural sector. Intense precipitation often results in the deterioration of rural road infrastructure resulting in inaccessibility. Rainfall and temperature data from 1989 to 2019 was obtained from Kenya Meteorological Department. Data on Greenleaf and cost of repairs and maintenances are from selected tea factories managed by Kenya Tea Development Agency. Data on perception is based on a questionnaire survey of 398 randomly selected tea farmers. Results show that climate variability is experience

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21

OSBAHR, HENNY, PETER DORWARD, ROGER STERN, and SARAH COOPER. "SUPPORTING AGRICULTURAL INNOVATION IN UGANDA TO RESPOND TO CLIMATE RISK: LINKING CLIMATE CHANGE AND VARIABILITY WITH FARMER PERCEPTIONS." Experimental Agriculture 47, no. 2 (2011): 293–316. http://dx.doi.org/10.1017/s0014479710000785.

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SUMMARYThis paper investigates farmers’ perceptions of climate change and variability in southwest Uganda and compares them with daily rainfall and temperature measurements from the 1960s to the present, including trends in daily rainfall and temperature, seasonality, changing probability of risk and intensity of rainfall events. Statistical analyses and modelling of rainfall and temperature were performed and contrasted with qualitative data collected through a semi-structured questionnaire. The fieldwork showed that farmers perceived regional climate to have changed in the past 20 years. In

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Habte, Abera, Girma Mamo, Walelign Worku, Dereje Ayalew, and Sebastian Gayler. "Spatial Variability and Temporal Trends of Climate Change in Southwest Ethiopia: Association with Farmers’ Perception and Their Adaptation Strategies." Advances in Meteorology 2021 (July 23, 2021): 1–13. http://dx.doi.org/10.1155/2021/3863530.

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The impact of climate change is a global threat, and its effect is more pronounced in developing countries. It is vital to link physical data analysis with endogenous knowledge and practices of farmers to strengthen their adaptive capacity. This study was conducted to explore spatial variability and temporal trends of temperature and rainfall in association with farmers’ perceptions and their adaptation strategies in Southwest Ethiopia. Daily rainfall and temperature data of twelve weather stations were collected from the National Meteorological Agency of Ethiopia for the period 1983 to 2016.

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Cudjoe, Godwin P., Phillip Antwi-Agyei, and Benjamin A. Gyampoh. "The Effect of Climate Variability on Maize Production in the Ejura-Sekyedumase Municipality, Ghana." Climate 9, no. 10 (2021): 145. http://dx.doi.org/10.3390/cli9100145.

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Agriculture is one of the sectors most susceptible to changes in climatic conditions. The impact is even stronger in Africa, where rain-fed agriculture is vital for daily subsistence, but where adaptive capacity is low. It is therefore crucial to increase the understanding of the actual climate change dynamics on agricultural productivity. This study examined the effects of changes in climatic variables such as rainfall and temperature on maize production in the Ejura-Sekyedumase Municipality, Ghana. Regression, chi-square and trend analyses were used to establish the relationship between clim

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T.S.G. Peiris. "Assessment of Climate Variability for Coconut and Other Crops: A Statistical Approach." CORD 24, no. 1 (2008): 19. http://dx.doi.org/10.37833/cord.v24i1.157.

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Public opinion in Sri Lanka has been seriously concerned about the possible impact of climate change on different sectors, and in particular for the agricultural sector. Annual and weekly climate data were analyzed to provide useful information to farmers, planners and scientists to assess the suitability of different types of crops. The statistical methodology of the analysis is illustrated using daily rainfall and air temperature from 1951 to 2001 for Hambantota, a major coconut growing district in Sri Lanka. The increase in maximum air temperature and decrease in the amount of rainfall per

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Kisesa, Makula, Marie Umutoni, Lovina Japheth, Elias Lipiki, Laban Kebacho, and Shelleph Tilwebwa. "The covariability of sea surface temperature and MAM rainfall on East Africa using singular value decomposition analysis." Geographica Pannonica 24, no. 4 (2020): 261–70. http://dx.doi.org/10.5937/gp24-27577.

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The study assesses the covariability of Sea Surface Temperature (SST) and March to May (MAM) rainfall variability on East Africa (EA) from 1981 to 2018. Singular Value Decomposition (SVD) analysis reveals the significant influence of SST anomalies on MAM rainfall, with covariability of 91%, 88.61%, and 82.9% for Indian, Atlantic, and the Pacific Ocean, respectively. The Indian Ocean explains the variability of rainfall to the large extent followed by the Atlantic Ocean and the Pacific Ocean. The rainfall patterns over the EA correspond to SST variability over the western, central, and Eastern

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Zeroual, Ayoub, Ali A. Assani, and Mohamed Meddi. "Combined analysis of temperature and rainfall variability as they relate to climate indices in Northern Algeria over the 1972–2013 period." Hydrology Research 48, no. 2 (2016): 584–95. http://dx.doi.org/10.2166/nh.2016.244.

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Many studies have highlighted breaks in mean values of temperature and precipitation time series since the 1970s. Given that temperatures have continued to increase following that decade, the first question addressed in this study is whether other breaks in mean values have occurred since that time. The second question is to determine which climate indices influence temperature and rainfall in the coastal region of Northern Algeria. To address these two questions, we analyzed the temporal variability of temperature and annual and seasonal rainfall as they relate to four climate indices at seve

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Obami-Ondon, Harmel, Medard Ngouala Mabonzo, Ngoma Mvoundou Christian, and Bernard Mabiala. "ANALYSIS OF CLIMATE VARIABILITY AND ITS INFLUENCES ON SEASONAL RAINFALL PATTERNS ON THE BATEKE PLATEAUS IN THE REPUBLIC OF CONGO-BRAZZAVILLE." International Journal of Advanced Research 9, no. 01 (2021): 327–37. http://dx.doi.org/10.21474/ijar01/12306.

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Climate variability, in Africa in general and in the Republic of Congo-Brazzaville in particular, has been widely documented over the past 20 years. However, variables related to rainfall, such as the nine-month rainy seasons, have been very little studied in the Bateke Plateaux zone, which play a major role in regional hydrology. The objective of this study is to investigate the influence of climatic events on seasonal rainfall patterns on the Plateaux Bateke. On the one hand, it involves monitoring the evolution of climatic parameters through the analysis of temperature, relative humidity an

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Grove, C. A., J. Zinke, F. Peeters, et al. "Madagascar corals reveal Pacific multidecadal modulation of rainfall since 1708." Climate of the Past Discussions 8, no. 2 (2012): 787–817. http://dx.doi.org/10.5194/cpd-8-787-2012.

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Abstract. The Pacific Ocean modulates Australian and North American rainfall variability on multidecadal timescales, in concert with the Pacific Decadal Oscillation (PDO). It has been suggested that Pacific decadal variability may also influence Indian Ocean surface temperature and rainfall in a far-field response, similar to the El Niño Southern Oscillation (ENSO) on interannual timescales. However, instrumental records of rainfall are too short and too sparse to confidently assess such multidecadal climatic teleconnections. Here, we present four climate archives spanning the past 300 yr from

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Sowmyalatha, B. S., K. S. Shubhashree, and V. Thimmegowda. "Rainfall and Temperature Variability Analysis of ZARS, Mandya in Karnataka, India." International Journal of Current Microbiology and Applied Sciences 8, no. 05 (2019): 44–50. http://dx.doi.org/10.20546/ijcmas.2019.805.006.

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Gaveta, Elias. "Crop Yield Responses to Temperature and Rainfall Variability in Bolero, Malawi." International Journal of Climate Change: Impacts and Responses 9, no. 3 (2017): 43–54. http://dx.doi.org/10.18848/1835-7156/cgp/v09i03/43-54.

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Gaveta, Elias. "Crop Yield Responses to Temperature and Rainfall Variability in Bolero, Malawi." International Journal of Climate Change: Impacts and Responses 9, no. 4 (2017): 43–54. http://dx.doi.org/10.18848/1835-7156/cgp/v09i04/43-54.

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McMILLAN, ANDREW M. S., GREGORY C. WINSTON, and MICHAEL L. GOULDEN. "Age-dependent response of boreal forest to temperature and rainfall variability." Global Change Biology 14, no. 8 (2008): 1904–16. http://dx.doi.org/10.1111/j.1365-2486.2008.01614.x.

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Mohino, Elsa, Serge Janicot, and Juergen Bader. "Sahel rainfall and decadal to multi-decadal sea surface temperature variability." Climate Dynamics 37, no. 3-4 (2010): 419–40. http://dx.doi.org/10.1007/s00382-010-0867-2.

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Badruddin and O. P. M. Aslam. "Influence of cosmic-ray variability on the monsoon rainfall and temperature." Journal of Atmospheric and Solar-Terrestrial Physics 122 (January 2015): 86–96. http://dx.doi.org/10.1016/j.jastp.2014.11.005.

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Ayal, Desalegn Yayeh, Maren Radeny, Solomon Desta, and Getachew Gebru. "Climate variability, perceptions of pastoralists and their adaptation strategies." International Journal of Climate Change Strategies and Management 10, no. 4 (2018): 596–615. http://dx.doi.org/10.1108/ijccsm-06-2017-0143.

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Purpose Climate variability and extremes adversely affect the livestock sector directly and indirectly by aggravating the prevalence of livestock diseases, distorting production system and the sector profitability. This paper aims to examine climate variability and its impact on livestock system and livestock disease among pastoralists in Borana, Southern Ethiopia. Design/methodology/approach Data were collected through a combination of quantitative and qualitative methods using household questionnaire, field observations, focus group discussions and key informant interviews. Areal grid dikada

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Msongaleli, Barnabas M., S. D. Tumbo, N. I. Kihupi, and Filbert B. Rwehumbiza. "Performance of Sorghum Varieties under Variable Rainfall in Central Tanzania." International Scholarly Research Notices 2017 (April 27, 2017): 1–10. http://dx.doi.org/10.1155/2017/2506946.

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Rainfall variability has a significant impact on crop production with manifestations in frequent crop failure in semiarid areas. This study used the parameterized APSIM crop model to investigate how rainfall variability may affect yields of improved sorghum varieties based on long-term historical rainfall and projected climate. Analyses of historical rainfall indicate a mix of nonsignificant and significant trends on the onset, cessation, and length of the growing season. The study confirmed that rainfall variability indeed affects yields of improved sorghum varieties. Further analyses of simu

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Jajere, Ahmed Abubakar, Joshua, Jonah Kunda, Umar Muhammed Bibi, and Yusuf Maina-Bukar. "Accuracy of Local Knowledge in Prediction Seasonal Weather: Empirical Evidence from North eastern Nigeria." Environment and Pollution 10, no. 2 (2021): 33. http://dx.doi.org/10.5539/ep.v10n2p33.

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Over the years, West African Sahel&rsquo;s people developed some strategies for predicting the seasonal weather using meteorological indicators to plan for extreme weather events. This study used information on local indicators of seasonal weather prediction and mean monthly rainfall and temperature record (1981-2017) from Nguru weather station located at Latitude 14&deg;N in achieving the aim of the study. Both qualitative and quantitate (descriptive and inferential) statistical tools were employed in analysing the collected data. The study found that the local population of the study

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Britton, Emma, Simon Hales, Kamalesh Venugopal, and Michael G. Baker. "The impact of climate variability and change on cryptosporidiosis and giardiasis rates in New Zealand." Journal of Water and Health 8, no. 3 (2010): 561–71. http://dx.doi.org/10.2166/wh.2010.049.

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Aim: To investigate the spatial relationship between climate variability and cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006. Methods: Negative binomial regression was used to analyse spatial relationships between cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006, and climatological average rainfall and temperature at the Census Area Unit (CAU) level. The quality of domestic water supplies, urban-rural status and deprivation were included as covariates. Main results: Giardiasis: There was a positive association between rainf

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Benti, Fedhasa, and Magarsa Abara. "Trend Analyses of Temperature and Rainfall and Their Response to Global CO2 Emission in Masha, Southern Ethiopia." Caraka Tani: Journal of Sustainable Agriculture 34, no. 1 (2019): 67. http://dx.doi.org/10.20961/carakatani.v34i1.28022.

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Ethiopia is one of the most vulnerable countries to climate change and often signifies higher probabilities of droughts that have historically affected millions of farmers. The variability in rainfall patterns and drought have disrupted crop production and exacerbated food insecurity in many parts of Ethiopia. This study aimed to investigate seasonal and annual temperature and rainfall trends and their association to the global CO<sub>2</sub> emission. Temperature and rainfall data obtained from the Masha meteorological station and CO<sub>2</sub> from EDGAR 4.3.2 datase

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Emmanuel, Lawin, Nina Hounguè, Chabi Biaou, and Djigbo Badou. "Statistical Analysis of Recent and Future Rainfall and Temperature Variability in the Mono River Watershed (Benin, Togo)." Climate 7, no. 1 (2019): 8. http://dx.doi.org/10.3390/cli7010008.

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This paper assessed the current and mid-century trends in rainfall and temperature over the Mono River watershed. It considered observation data for the period 1981–2010 and projection data from the regional climate model (RCM), REMO, for the period 2018–2050 under emission scenarios RCP4.5 and RCP8.5. Rainfall data were interpolated using ordinary kriging. Mann-Kendall, Pettitt and Standardized Normal Homogeneity (SNH) tests were used for trends and break-points detection. Rainfall interannual variability analysis was based on standardized precipitation index (SPI), whereas anomalies indices

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Escuredo, Olga, Ana Seijo-Rodríguez, M. Shantal Rodríguez-Flores, Laura Meno, and M. Carmen Seijo. "Changes in the Morphological Characteristics of Potato Plants Attributed to Seasonal Variability." Agriculture 10, no. 4 (2020): 95. http://dx.doi.org/10.3390/agriculture10040095.

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The development of a potato crop differs according to the environmental conditions and growing season of an area. Periods of high temperatures and drought have been frequent in recent years, and this has affected crops worldwide. The effect of meteorological factors on the plant morphology of potato cultivars growing in A Limia was analyzed for three consecutive years. The crop cycle with the highest temperatures and least accumulated rainfall (2016) showed plants with a higher number of leaflets, which were shorter in length. The crop cycle (2014) with a lower temperature and more rainfall ha

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Tomlinson, Sean, and Philip C. Withers. "Biogeographical effects on body mass of native Australian and introduced mice, Pseudomys hermannsburgensis and Mus domesticus: an inquiry into Bergmann's Rule." Australian Journal of Zoology 56, no. 6 (2008): 423. http://dx.doi.org/10.1071/zo08086.

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We investigated interactions of body mass with geographical location, and five climatic measures for two Australian rodents, the native Australian sandy inland mouse (Pseudomys hermannsburgensis) and the introduced house mouse (Mus domesticus). Correlation and regression analyses identified interactions of body mass with latitude, longitude, average highest maximum and lowest minimum temperatures, average annual rainfall, rainfall variability, and aridity. There was a significant correlation of body mass with latitude and longitude for Mus domesticus and P. hermannsburgensis. House mice were h

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Worku, Tesfa, Deepak Khare, and S. K. Tripathi. "Spatiotemporal trend analysis of rainfall and temperature, and its implications for crop production." Journal of Water and Climate Change 10, no. 4 (2018): 799–817. http://dx.doi.org/10.2166/wcc.2018.064.

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Abstract Global warming is a significant global environmental problem in the 21st century. The problem is high in developing countries, particularly sub-Saharan countries in which the majority of the population live on rainfed agriculture. The present study aimed to undertake spatiotemporal analysis of seasonal and annual rainfall and temperature and its implications. The MK test, Sen's slope and precipitation concentration index (PCI) were applied. Finally, Pearson correlation analysis between climatic variables and crop production was analysed. The Mann–Kendall test results showed that the a

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He, Yaqian, and Eungul Lee. "Empirical Relationships of Sea Surface Temperature and Vegetation Activity with Summer Rainfall Variability over the Sahel*." Earth Interactions 20, no. 6 (2016): 1–18. http://dx.doi.org/10.1175/ei-d-15-0028.1.

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Abstract Regional land surface and remote ocean variables have been considered as primary forcings altering the variability of summer rainfall over the Sahel. However, previous studies usually examined the two components separately. In this study, the authors apply statistical methods including correlation, multivariate linear regression, and Granger causality analyses to investigate the relative roles of spring–summer sea surface temperature (SST) and vegetation activity in explaining the Sahel summer rainfall variability from 1982 to 2006. The remotely sensed normalized difference vegetation

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Ademe, Arega Shumetie, Belay Kassa, Degye Goshu, and Majaliwa Mwanjalolo. "Effect of Climate Variability on Crop Income in Central Ethiopia." Turkish Journal of Agriculture - Food Science and Technology 5, no. 12 (2017): 1536. http://dx.doi.org/10.24925/turjaf.v5i12.1536-1543.1494.

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Ethiopian agriculture is a vulnerable sector from effects of climate variability. This study identified how strong is the effect of climate variability on smallholders’ crop income in Central highlands and Arssi grain plough farming systems of the country. The unbalanced panel data (1994-2014) of the study collected for eight rounds analysed through fixed effect regression. The model result shows that successive increment of crop season rainfall keeping the temperature constant has negative and significant effect on households’ crop income in the study area. The crop income responds similarly

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Gautam, R., N. C. Hsu, K. M. Lau, and M. Kafatos. "Aerosol and rainfall variability over the Indian monsoon region: distributions, trends and coupling." Annales Geophysicae 27, no. 9 (2009): 3691–703. http://dx.doi.org/10.5194/angeo-27-3691-2009.

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Abstract. Aerosol solar absorption over the Indian monsoon region has a potential role of modulating the monsoon circulation and rainfall distribution as suggested by recent studies based on model simulations. Prior to the onset of the monsoon, northern India is influenced by significant dust transport that constitutes the bulk of the regional aerosol loading over the Gangetic-Himalayan region. In this paper, a multi-sensor characterization of the increasing pre-monsoon aerosol loading over northern India, in terms of their spatial, temporal and vertical distribution is presented. Aerosol tran

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Esayas, Befikadu, Belay Simane, Ermias Teferi, Victor Ongoma, and Nigussie Tefera. "Climate Variability and Farmers’ Perception in Southern Ethiopia." Advances in Meteorology 2019 (June 2, 2019): 1–19. http://dx.doi.org/10.1155/2019/7341465.

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The study aims to analyze climate variability and farmers’ perception in Southern Ethiopia. Gridded annual temperature and precipitation data were obtained from the National Meteorological Agency (NMA) of Ethiopia for the period between 1983 and 2014. Using a multistage sampling technique, 403 farm households were surveyed to substantiate farmers’ perceptions about climate variability and change. The study applied a nonparametric Sen’s slope estimator and Mann–Kendall’s trend tests to detect the magnitude and statistical significance of climate variability and binary logit regression model to

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Ma, Jian, and Shang-Ping Xie. "Regional Patterns of Sea Surface Temperature Change: A Source of Uncertainty in Future Projections of Precipitation and Atmospheric Circulation*." Journal of Climate 26, no. 8 (2013): 2482–501. http://dx.doi.org/10.1175/jcli-d-12-00283.1.

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Abstract Precipitation change in response to global warming has profound impacts on environment for life but is highly uncertain. Effects of sea surface temperature (SST) warming on the response of rainfall and atmospheric overturning circulation are investigated using Coupled Model Intercomparison Project simulations. The SST warming is decomposed into a spatially uniform SST increase (SUSI) and deviations from it. The SST pattern effect is found to be important in explaining both the multimodel ensemble mean distribution and intermodel variability of rainfall change over tropical oceans. In

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KASSIE, B. T., R. P. RÖTTER, H. HENGSDIJK, et al. "Climate variability and change in the Central Rift Valley of Ethiopia: challenges for rainfed crop production." Journal of Agricultural Science 152, no. 1 (2013): 58–74. http://dx.doi.org/10.1017/s0021859612000986.

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SUMMARYEthiopia is one of the countries most vulnerable to the impacts of climate variability and change on agriculture. The present study aims to understand and characterize agro-climatic variability and changes and associated risks with respect to implications for rainfed crop production in the Central Rift Valley (CRV). Temporal variability and extreme values of selected rainfall and temperature indices were analysed and trends were evaluated using Sen's slope estimator and Mann–Kendall trend test methods. Projected future changes in rainfall and temperature for the 2080s relative to the 19

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Lu, Bo-Yi, Pao-Shin Chu, Sung-Hun Kim, and Christina Karamperidou. "Hawaiian Regional Climate Variability during Two Types of El Niño." Journal of Climate 33, no. 22 (2020): 9929–43. http://dx.doi.org/10.1175/jcli-d-19-0985.1.

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AbstractThe large-scale atmospheric circulation of the North Pacific associated with two types of El Niño—the eastern Pacific (EP) and central Pacific (CP)—is studied in relation to Hawaiian winter (December–February) rainfall and temperature. The eastern and central equatorial Pacific undergo active convective heating during EP El Niño winters. The local Hadley circulation is enhanced and an upper-level westerly jet stream of the North Pacific is elongated eastward. Due to the impact of both phenomena, stronger anomalous descending motion, moisture flux divergence anomalies near Hawaii, and r

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