Relevant bibliographies by topics / Satellite-derived estimates / Journal articles
To see the other types of publications on this topic, follow the link: Satellite-derived estimates.

Journal articles on the topic 'Satellite-derived estimates'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Satellite-derived estimates.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Shige, Shoichi, Satoshi Kida, Hiroki Ashiwake, Takuji Kubota, and Kazumasa Aonashi. "Improvement of TMI Rain Retrievals in Mountainous Areas." Journal of Applied Meteorology and Climatology 52, no. 1 (2013): 242–54. http://dx.doi.org/10.1175/jamc-d-12-074.1.

Full text
Abstract:
AbstractHeavy rainfall associated with shallow orographic rainfall systems has been underestimated by passive microwave radiometer algorithms owing to weak ice scattering signatures. The authors improve the performance of estimates made using a passive microwave radiometer algorithm, the Global Satellite Mapping of Precipitation (GSMaP) algorithm, from data obtained by the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) for orographic heavy rainfall. An orographic/nonorographic rainfall classification scheme is developed on the basis of orographically forced upward vertical m
APA, Harvard, Vancouver, ISO, and other styles
2

Bryant, Seth, Heather McGrath, and Mathieu Boudreault. "Gridded flood depth estimates from satellite-derived inundations." Natural Hazards and Earth System Sciences 22, no. 4 (2022): 1437–50. http://dx.doi.org/10.5194/nhess-22-1437-2022.

Full text
Abstract:
Abstract. Canada's RADARSAT missions improve the potential to study past flood events; however, existing tools to derive flood depths from this remote-sensing data do not correct for errors, leading to poor estimates. To provide more accurate gridded depth estimates of historical flooding, a new tool is proposed that integrates Height Above Nearest Drainage and Cost Allocation algorithms. This tool is tested against two trusted, hydraulically derived, gridded depths of recent floods in Canada. This validation shows the proposed tool outperforms existing tools and can provide more accurate esti
APA, Harvard, Vancouver, ISO, and other styles
3

Nemani, Ramakrishna, Lars Pierce, Steve Running, and Samuel Goward. "Developing Satellite-derived Estimates of Surface Moisture Status." Journal of Applied Meteorology 32, no. 3 (1993): 548–57. http://dx.doi.org/10.1175/1520-0450(1993)032<0548:dsdeos>2.0.co;2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Vos, Kilian, Mitchell D. Harley, Kristen D. Splinter, Andrew Walker, and Ian L. Turner. "BEACH SLOPES FROM SATELLITE-DERIVED SHORELINES." Coastal Engineering Proceedings, no. 36v (December 28, 2020): 36. http://dx.doi.org/10.9753/icce.v36v.sediment.36.

Full text
Abstract:
The slope of the beach face is a critical parameter for coastal scientists and engineers studying sandy coastlines. However, despite its importance for coastal applications (engineering formulations, coastal flood modelling, swimming safety), it remains extremely difficult to obtain reliable estimates of the beachface slope over large spatial scales (hundreds to thousands of km of coastline). This presentation describes a new method to estimate the beach-face slope exclusively from space-borne observations: shoreline positions derived from publicly available optical imaging satellites and tide
APA, Harvard, Vancouver, ISO, and other styles
5

Goldberg, Daniel L., Susan C. Anenberg, Zifeng Lu, et al. "Urban NO x emissions around the world declined faster than anticipated between 2005 and 2019." Environmental Research Letters 16, no. 11 (2021): 115004. http://dx.doi.org/10.1088/1748-9326/ac2c34.

Full text
Abstract:
Abstract Emission inventory development for air pollutants, by compiling records from individual emission sources, takes many years and involves extensive multi-national effort. A complementary method to estimate air pollution emissions is in the use of satellite remote sensing. In this study, NO2 observations from the Ozone Monitoring Instrument are combined with re-analysis meteorology to estimate urban nitrogen oxide (NO X ) emissions for 80 global cities between 2005 and 2019. The global average downward trend in satellite-derived urban NOX emissions was 3.1%–4.0% yr−1 between 2009 and 201
APA, Harvard, Vancouver, ISO, and other styles
6

Brennan, James, Jose L. Gómez-Dans, Mathias Disney, and Philip Lewis. "Theoretical uncertainties for global satellite-derived burned area estimates." Biogeosciences 16, no. 16 (2019): 3147–64. http://dx.doi.org/10.5194/bg-16-3147-2019.

Full text
Abstract:
Abstract. Quantitative information on the error properties of global satellite-derived burned area (BA) products is essential for evaluating the quality of these products, e.g. against modelled BA estimates. We estimate theoretical uncertainties for three widely used global satellite-derived BA products using a multiplicative triple collocation error model. The approach provides spatially unique uncertainties at 1∘ for the Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 burned area product (MCD64), the MODIS Collection 5.1 (MCD45) product, and the European Space Agency (ESA)
APA, Harvard, Vancouver, ISO, and other styles
7

Martin, T. J., B. G. Gardiner, and G. Seckmeyer. "Uncertainties in satellite-derived estimates of surface UV doses." Journal of Geophysical Research: Atmospheres 105, no. D22 (2000): 27005–11. http://dx.doi.org/10.1029/2000jd900432.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Granger, R. J. "Satellite-derived estimates of evapotranspiration in the Gediz basin." Journal of Hydrology 229, no. 1-2 (2000): 70–76. http://dx.doi.org/10.1016/s0022-1694(99)00200-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Poursanidis, Dimitris, Dimosthenis Traganos, Nektarios Chrysoulakis, and Peter Reinartz. "Cubesats Allow High Spatiotemporal Estimates of Satellite-Derived Bathymetry." Remote Sensing 11, no. 11 (2019): 1299. http://dx.doi.org/10.3390/rs11111299.

Full text
Abstract:
High spatial and temporal resolution satellite remote sensing estimates are the silver bullet for monitoring of coastal marine areas globally. From 2000, when the first commercial satellite platforms appeared, offering high spatial resolution data, the mapping of coastal habitats and the extraction of bathymetric information have been possible at local scales. Since then, several platforms have offered such data, although not at high temporal resolution, making the selection of suitable images challenging, especially in areas with high cloud coverage. PlanetScope CubeSats appear to cover this
APA, Harvard, Vancouver, ISO, and other styles
10

Yang, Y., Y. Zhao, and L. Zhang. "EVALUATING THE INFLUENCE OF SATELLITE OBSERVATION ON INVERSING NOX EMISSION AT REGIONAL SCALE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W9 (October 25, 2019): 211–17. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w9-211-2019.

Full text
Abstract:
Abstract. In order to explore the influence of satellite observation data on the top-down NOx estimates at regional scale, the top-down NOx emissions for Yangtze River Delta (YRD) region at 9 km spatial resolution were developed with Peking University Ozone Monitoring Instrument NO2 product (POMINO) v1 and POMINO v2 satellite observation data in January and July of 2016. The differences of top-down NOx estimates derived from the two satellites were quantitative evaluated, and the reasons were comprehensively analyzed. The total NOx emissions based on POMINO v2 in January and July was 27% and 4
APA, Harvard, Vancouver, ISO, and other styles
11

Buchwitz, Michael, Oliver Schneising, Maximilian Reuter, et al. "Satellite-derived methane hotspot emission estimates using a fast data-driven method." Atmospheric Chemistry and Physics 17, no. 9 (2017): 5751–74. http://dx.doi.org/10.5194/acp-17-5751-2017.

Full text
Abstract:
Abstract. Methane is an important atmospheric greenhouse gas and an adequate understanding of its emission sources is needed for climate change assessments, predictions, and the development and verification of emission mitigation strategies. Satellite retrievals of near-surface-sensitive column-averaged dry-air mole fractions of atmospheric methane, i.e. XCH4, can be used to quantify methane emissions. Maps of time-averaged satellite-derived XCH4 show regionally elevated methane over several methane source regions. In order to obtain methane emissions of these source regions we use a simple an
APA, Harvard, Vancouver, ISO, and other styles
12

Manion, Alexander, Clark Evans, Timothy L. Olander, Christopher S. Velden, and Lewis D. Grasso. "An Evaluation of Advanced Dvorak Technique–Derived Tropical Cyclone Intensity Estimates during Extratropical Transition Using Synthetic Satellite Imagery." Weather and Forecasting 30, no. 4 (2015): 984–1009. http://dx.doi.org/10.1175/waf-d-15-0019.1.

Full text
Abstract:
Abstract It is known that both Dvorak technique and advanced Dvorak technique–derived intensity estimates for tropical cyclones during extratropical transition are less reliable because the empirical relationships between cloud patterns and cyclone intensity underlying each technique are primarily tropical in nature and thus less robust during extratropical transition. However, as direct observations of cyclone intensity during extratropical transition are rare, the precise extent to which such remotely sensed intensity estimates are in error is uncertain. To address this uncertainty and provi
APA, Harvard, Vancouver, ISO, and other styles
13

Areerachakul, Nathaporn, Jaya Kandasamy, Saravanamuthu Vigneswaran, and Kittitanapat Bandhonopparat. "Refining Rainfall Derived from Satellite Radar for Estimating Inflows at Lam Pao Dam, Thailand." Hydrology 12, no. 7 (2025): 163. https://doi.org/10.3390/hydrology12070163.

Full text
Abstract:
This project aimed to evaluate the use of meteorological satellite-derived rainfall data to estimate water inflows to dams. In this study, the Lam Pao Dam in the Chi Basin, Thailand, was used as a case study. Rainfall data were obtained using the PERSIANN technique. To improve accuracy, satellite-derived rainfall estimates were adjusted using ground-based rainfall measurements from stations located near and within the catchment area, applying the 1-DVAR method. The Kriging method was employed to estimate the spatial distribution of rainfall over the catchment area. This approach resulted in a
APA, Harvard, Vancouver, ISO, and other styles
14

Joseph, Renu, Thomas M. Smith, Mathew R. P. Sapiano, and Ralph R. Ferraro. "A New High-Resolution Satellite-Derived Precipitation Dataset for Climate Studies." Journal of Hydrometeorology 10, no. 4 (2009): 935–52. http://dx.doi.org/10.1175/2009jhm1096.1.

Full text
Abstract:
Abstract The importance of analyzing climate at high spatiotemporal resolution has been emphasized in the recent Intergovernmental Panel on Climate Change (IPCC) report. Several high-resolution analyses of global precipitation have recently been created to meet this need by combining high-quality passive microwave estimates with frequently sampled geosynchronous infrared estimates. A new daily 0.25° analysis has been developed at the Cooperative Institute for Climate Studies (CICS), called the CICS High-Resolution Optimally Interpolated Microwave Precipitation from Satellites (CHOMPS), which i
APA, Harvard, Vancouver, ISO, and other styles
15

Zuria-Jordan, I. L. "Satellite-Derived Estimates Of Phytoplankton Biomass Off Southern Baja California." Ciencias Marinas 21, no. 3 (1995): 265–80. http://dx.doi.org/10.7773/cm.v21i3.998.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Chu, Duo, Tundrop Pubu, Ghancan Norbu, Bajracharya Sagar, Shrestha Mandira, and Jianping Guo. "Validation of the satellite-derived rainfall estimates over the Tibet." Acta Meteorologica Sinica 25, no. 6 (2011): 734–41. http://dx.doi.org/10.1007/s13351-011-0604-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Bentamy, Abderrahim, Semyon A. Grodsky, Kristina Katsaros, Alberto M. Mestas-Nuñez, Bruno Blanke, and Fabien Desbiolles. "Improvement in air–sea flux estimates derived from satellite observations." International Journal of Remote Sensing 34, no. 14 (2013): 5243–61. http://dx.doi.org/10.1080/01431161.2013.787502.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Chen, Hanqing, Bin Yong, Yan Shen, Jiufu Liu, Yang Hong, and Jianyun Zhang. "Comparison analysis of six purely satellite-derived global precipitation estimates." Journal of Hydrology 581 (February 2020): 124376. http://dx.doi.org/10.1016/j.jhydrol.2019.124376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Smith, Rebecca A., and Christian D. Kummerow. "A Comparison of in Situ, Reanalysis, and Satellite Water Budgets over the Upper Colorado River Basin." Journal of Hydrometeorology 14, no. 3 (2013): 888–905. http://dx.doi.org/10.1175/jhm-d-12-0119.1.

Full text
Abstract:
Abstract Using in situ, reanalysis, and satellite-derived datasets, surface and atmospheric water budgets of the Upper Colorado River basin are analyzed. All datasets capture the seasonal cycle for each water budget component. For precipitation, all products capture the interannual variability, though reanalyses tend to overestimate in situ while satellite-derived precipitation underestimates. Most products capture the interannual variability of evapotranspiration (ET), though magnitudes differ among the products. Variability and magnitude among storage volume change products widely vary. With
APA, Harvard, Vancouver, ISO, and other styles
20

Griffin, Debora, Jack Chen, Kerry Anderson, et al. "Biomass burning CO emissions: exploring insights through TROPOMI-derived emissions and emission coefficients." Atmospheric Chemistry and Physics 24, no. 17 (2024): 10159–86. http://dx.doi.org/10.5194/acp-24-10159-2024.

Full text
Abstract:
Abstract. Emissions from biomass burning are a significant source of air pollution, which can adversely impact air quality and ecosystems thousands of kilometres downwind. These emissions can be estimated by a bottom-up approach that relies on fuel consumed and standardized emission factors. Emissions are also commonly derived with a top-down approach, using satellite-observed fire radiative power (FRP) as a proxy for fuel consumption. Biomass burning emissions can also be estimated directly from satellite trace gas observations, including carbon monoxide (CO). Here, we explore the potential o
APA, Harvard, Vancouver, ISO, and other styles
21

Klosterman, S. T., K. Hufkens, J. M. Gray, et al. "Evaluating remote sensing of deciduous forest phenology at multiple spatial scales using PhenoCam imagery." Biogeosciences 11, no. 16 (2014): 4305–20. http://dx.doi.org/10.5194/bg-11-4305-2014.

Full text
Abstract:
Abstract. Plant phenology regulates ecosystem services at local and global scales and is a sensitive indicator of global change. Estimates of phenophase transition dates, such as the start of spring or end of fall, can be derived from sensor-based time series, but must be interpreted in terms of biologically relevant events. We use the PhenoCam archive of digital repeat photography to implement a consistent protocol for visual assessment of canopy phenology at 13 temperate deciduous forest sites throughout eastern North America, and to perform digital image analysis for time-series-based estim
APA, Harvard, Vancouver, ISO, and other styles
22

Emberson, Robert A. "Dynamic rainfall erosivity estimates derived from IMERG data." Hydrology and Earth System Sciences 27, no. 19 (2023): 3547–63. http://dx.doi.org/10.5194/hess-27-3547-2023.

Full text
Abstract:
Abstract. Soil degradation is a critical threat to agriculture and food security around the world. Understanding the processes that drive soil erosion is necessary to support sustainable management practices and to reduce eutrophication of water systems from fertilizer runoff. The erosivity of precipitation is a primary control on the rate of soil erosion, but to calculate erosivity high-frequency precipitation data are required. Prior global-scale analysis has almost exclusively used ground-based rainfall gauges to calculate erosivity, but the advent of high-frequency satellite rainfall data
APA, Harvard, Vancouver, ISO, and other styles
23

Wonsick, Margaret M., Rachel T. Pinker, Wen Meng, and Louis Nguyen. "Evaluation of Surface Shortwave Flux Estimates from GOES: Sensitivity to Sensor Calibration." Journal of Atmospheric and Oceanic Technology 23, no. 7 (2006): 927–35. http://dx.doi.org/10.1175/jtech1894.1.

Full text
Abstract:
Abstract Parameters derived from satellite observations depend on the quality of the calibration method applied to the raw satellite radiance measurements. This study investigates the sensitivity of absolute reflectance, derived cloud cover, and estimated surface shortwave (SW) downward fluxes to two different calibration methods for the visible sensor aboard the eighth Geostationary Operational Environmental Satellite (GOES-8). The first method was developed at NOAA's National Environmental Satellite, Data, and Information Service (NESDIS), and the second at the NASA Langley Research Center.
APA, Harvard, Vancouver, ISO, and other styles
24

Dowd, Emily, Alistair J. Manning, Bryn Orth-Lashley, et al. "First validation of high-resolution satellite-derived methane emissions from an active gas leak in the UK." Atmospheric Measurement Techniques 17, no. 5 (2024): 1599–615. http://dx.doi.org/10.5194/amt-17-1599-2024.

Full text
Abstract:
Abstract. Atmospheric methane (CH4) is the second-most-important anthropogenic greenhouse gas and has a 20-year global warming potential 82 times greater than carbon dioxide (CO2). Anthropogenic sources account for ∼ 60 % of global CH4 emissions, of which 20 % come from oil and gas exploration, production and distribution. High-resolution satellite-based imaging spectrometers are becoming important tools for detecting and monitoring CH4 point source emissions, aiding mitigation. However, validation of these satellite measurements, such as those from the commercial GHGSat satellite constellatio
APA, Harvard, Vancouver, ISO, and other styles
25

Ding, Jieying, Ronald van der A, Henk Eskes, et al. "Ammonia emission estimates using CrIS satellite observations over Europe." Atmospheric Chemistry and Physics 24, no. 18 (2024): 10583–99. http://dx.doi.org/10.5194/acp-24-10583-2024.

Full text
Abstract:
Abstract. Over the past century, ammonia (NH3) emissions have increased with the growth of livestock and fertilizer usage. The abundant NH3 emissions lead to secondary fine particulate matter (PM2.5) pollution, climate change, and a reduction in biodiversity, and they affect human health. Up-to-date and spatially and temporally resolved information on NH3 emissions is essential to better quantify their impact. In this study we applied the existing Daily Emissions Constrained by Satellite Observations (DECSO) algorithm to NH3 observations from the Cross-track Infrared Sounder (CrIS) to estimate
APA, Harvard, Vancouver, ISO, and other styles
26

Ivanova, N., P. Rampal, and S. Bouillon. "Assessment of error in satellite derived lead fraction in Arctic." Cryosphere Discussions 9, no. 6 (2015): 6315–44. http://dx.doi.org/10.5194/tcd-9-6315-2015.

Full text
Abstract:
Abstract. Leads within consolidated sea ice control heat exchange between the ocean and the atmosphere during winter thus constituting an important climate parameter. These narrow elongated features occur when sea ice is fracturing under the action of wind and currents, reducing the local mechanical strength of the ice cover, which in turn impact the sea ice drift patterns. This makes a high quality lead fraction (LF) dataset to be in demand for sea ice model evaluation, initialization and for assimilation of such data in regional models. In this context, the available LF dataset retrieved fro
APA, Harvard, Vancouver, ISO, and other styles
27

Griffin, Debora, Chris A. McLinden, Enrico Dammers, et al. "Biomass burning nitrogen dioxide emissions derived from space with TROPOMI: methodology and validation." Atmospheric Measurement Techniques 14, no. 12 (2021): 7929–57. http://dx.doi.org/10.5194/amt-14-7929-2021.

Full text
Abstract:
Abstract. Smoke from wildfires is a significant source of air pollution, which can adversely impact air quality and ecosystems downwind. With the recently increasing intensity and severity of wildfires, the threat to air quality is expected to increase. Satellite-derived biomass burning emissions can fill in gaps in the absence of aircraft or ground-based measurement campaigns and can help improve the online calculation of biomass burning emissions as well as the biomass burning emissions inventories that feed air quality models. This study focuses on satellite-derived NOx emissions using the
APA, Harvard, Vancouver, ISO, and other styles
28

Joughin, Ian, and David G. Vaughan. "Marine ice beneath the Filchner–Ronne Ice Shelf, Antarctica: a comparison of estimated thickness distributions." Annals of Glaciology 39 (2004): 511–17. http://dx.doi.org/10.3189/172756404781814717.

Full text
Abstract:
AbstractIn an earlier study, melt/freeze rates beneath most of the Filchner–Ronne Ice Shelf, Antarctica, were estimated using an assumption of a steady-state ice shelf applied to a velocity field derived from RADARSAT and ERS-1 interferometric synthetic aperture radar (InSAR) data and an ice-thickness map inferred from ERS-1 satellite radar altimeter data. Here, we use these basal accumulation rates and the InSAR velocity data to estimate the distribution and thickness of marine ice beneath the Filchner–Ronne Ice Shelf. These estimates are compared with a marine-ice thickness map derived from
APA, Harvard, Vancouver, ISO, and other styles
29

Oppel, Steffen, and Abby N. Powell. "Age-Specific Survival Estimates of King Eiders Derived from Satellite Telemetry." Condor 112, no. 2 (2010): 323–30. http://dx.doi.org/10.1525/cond.2010.090199.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Crippa, Paola, Dominick Spracklen, and S. C. Pryor. "Satellite-derived estimates of ultrafine particle concentrations over eastern North America." Journal of Geophysical Research: Atmospheres 118, no. 17 (2013): 9968–81. http://dx.doi.org/10.1002/jgrd.50707.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Crow, Wade T., George J. Huffman, Rajat Bindlish, and Thomas J. Jackson. "Improving Satellite-Based Rainfall Accumulation Estimates Using Spaceborne Surface Soil Moisture Retrievals." Journal of Hydrometeorology 10, no. 1 (2009): 199–212. http://dx.doi.org/10.1175/2008jhm986.1.

Full text
Abstract:
Abstract Over land, remotely sensed surface soil moisture and rainfall accumulation retrievals contain complementary information that can be exploited for the mutual benefit of both product types. Here, a Kalman filtering–based tool is developed that utilizes a time series of spaceborne surface soil moisture retrievals to enhance short-term (2- to 10-day) satellite-based rainfall accumulation products. Using ground rain gauge data as a validation source, and a soil moisture product derived from the Advanced Microwave Scanning Radiometer aboard the NASA Aqua satellite, the approach is evaluated
APA, Harvard, Vancouver, ISO, and other styles
32

Peng, J., Y. Liu, X. Zhao, and A. Loew. "Estimation of evapotranspiration from MODIS TOA radiances in the Poyang Lake basin, China." Hydrology and Earth System Sciences 17, no. 4 (2013): 1431–44. http://dx.doi.org/10.5194/hess-17-1431-2013.

Full text
Abstract:
Abstract. Routine and rapid estimation of ET (evapotranspiration) at regional scale is of great significance for agricultural, hydrological and climatic studies. A simplified single-source energy balance parameterization scheme, known as the LST/NDVI (land surface temperature/normalized difference vegetation index) triangle method, has been applied successfully to estimate regional clear sky ET in many studies. Based on the triangle method, we proposed a new method in this study to estimate daily ET directly using the TOA (top of atmosphere) radiances without performing atmospheric correction
APA, Harvard, Vancouver, ISO, and other styles
33

Peng, J., Y. Liu, X. Zhao, and A. Loew. "Estimation of evapotranspiration from TOA radiances in the Poyang Lake Basin, China." Hydrology and Earth System Sciences Discussions 9, no. 9 (2012): 10963–1003. http://dx.doi.org/10.5194/hessd-9-10963-2012.

Full text
Abstract:
Abstract. Routine and rapid estimation of ET (evapotranspiration) at regional scale is of great significance for agricultural, hydrological and climatic studies. A simplified single-source energy balance parameterization scheme, known as the LST/NDVI (Land Surface Temperature/Vegetation Index) triangle method, has been applied successfully to estimate regional clear sky ET in many studies. Based on the triangle method, we proposed a new method in this study to estimate daily ET directly using the TOA (Top of Atmosphere) radiances without performing atmospheric correction and other complicated
APA, Harvard, Vancouver, ISO, and other styles
34

Castro, João Rodrigo de, Santiago Vianna Cuadra, Luciana Barros Pinto, João Marcelo Hoffmann de Souza, Marcos Paulo dos Santos, and Alexandre Bryan Heinemann. "Parametrization of Models and Use of Estimated Global Solar Radiation Data in the Irrigated Rice Yield Simulation." Revista Brasileira de Meteorologia 33, no. 2 (2018): 238–46. http://dx.doi.org/10.1590/0102-7786332003.

Full text
Abstract:
Abstract The objective of this study was to evaluate the use of estimated global solar radiation data in the simulations of potential yield of irrigated rice. Global solar radiation was estimated by four empirical models, based on air temperature, and a meteorological satellite derivated. The empirical models were calibrated and validated for 10 sites, representative of the six rice regions of the State of Rio Grande do Sul - Brazil. To evaluate the impact of the radiation estimates on irrigated rice yield simulations, the CERES-Rice model, calibrated for four cultivars, was used. The estimate
APA, Harvard, Vancouver, ISO, and other styles
35

Patel, Ekta, and Kaisey S. Mandel. "Evidence for a Massive Andromeda Galaxy Using Satellite Galaxy Proper Motions." Astrophysical Journal 948, no. 2 (2023): 104. http://dx.doi.org/10.3847/1538-4357/acc029.

Full text
Abstract:
Abstract We present new mass estimates for Andromeda (M31) using the orbital angular momenta of four satellite galaxies (M33, NGC 185, NGC 147, and IC 10) derived from existing proper motions, distances, and line-of-sight velocities. We infer two masses for M31: M vir = 2.85 − 0.77 + 1.47 × 10 12 M ⊙ using satellite galaxy phase-space information derived with Hubble Space Telescope (HST)-based M31 proper motions and M vir = 3.02 − 0.69 + 1.30 × 10 12 M ⊙ using phase-space information derived with the weighted average of HST+Gaia-based M31 proper motions. The precision of our new M31 mass estim
APA, Harvard, Vancouver, ISO, and other styles
36

Ford, B., and C. L. Heald. "Exploring the uncertainty associated with satellite-based estimates of premature mortality due to exposure to fine particulate matter." Atmospheric Chemistry and Physics Discussions 15, no. 18 (2015): 25329–80. http://dx.doi.org/10.5194/acpd-15-25329-2015.

Full text
Abstract:
Abstract. The negative impacts of fine particulate matter (PM2.5) exposure on human health are a primary motivator for air quality research. However, estimates of the air pollution health burden vary considerably and strongly depend on the datasets and methodology. Satellite observations of aerosol optical depth (AOD) have been widely used to overcome limited coverage from surface monitoring and to assess the global population exposure to PM2.5 and the associated premature mortality. Here we quantify the uncertainty in determining the burden of disease using this approach, discuss different me
APA, Harvard, Vancouver, ISO, and other styles
37

Ford, Bonne, and Colette L. Heald. "Exploring the uncertainty associated with satellite-based estimates of premature mortality due to exposure to fine particulate matter." Atmospheric Chemistry and Physics 16, no. 5 (2016): 3499–523. http://dx.doi.org/10.5194/acp-16-3499-2016.

Full text
Abstract:
Abstract. The negative impacts of fine particulate matter (PM2.5) exposure on human health are a primary motivator for air quality research. However, estimates of the air pollution health burden vary considerably and strongly depend on the data sets and methodology. Satellite observations of aerosol optical depth (AOD) have been widely used to overcome limited coverage from surface monitoring and to assess the global population exposure to PM2.5 and the associated premature mortality. Here we quantify the uncertainty in determining the burden of disease using this approach, discuss different m
APA, Harvard, Vancouver, ISO, and other styles
38

Barton, Ian J. "Improving Satellite-Derived Sea Surface Temperature Accuracies Using Water Vapor Profile Data." Journal of Atmospheric and Oceanic Technology 28, no. 1 (2011): 85–93. http://dx.doi.org/10.1175/2010jtecha1502.1.

Full text
Abstract:
Abstract Analyses based on atmospheric infrared radiative transfer simulations and collocated ship and satellite data are used to investigate whether knowledge of vertical atmospheric water vapor distributions can improve the accuracy of sea surface temperature (SST) estimates from satellite data. Initially, a simulated set of satellite brightness temperatures generated by a radiative transfer model with a large maritime radiosonde database was obtained. Simple linear SST algorithms are derived from this dataset, and these are then reapplied to the data to give simulated SST estimates and erro
APA, Harvard, Vancouver, ISO, and other styles
39

Vogt, M., T. Hashioka, M. R. Payne, et al. "The distribution, dominance patterns and ecological niches of plankton functional types in Dynamic Green Ocean Models and satellite estimates." Biogeosciences Discussions 10, no. 11 (2013): 17193–247. http://dx.doi.org/10.5194/bgd-10-17193-2013.

Full text
Abstract:
Abstract. We compare the spatial and temporal representation of phytoplankton functional types (pPFTs) in four different Dynamic Green Ocean Models (DGOMs; CCSM-BEC, NEMURO, PISCES and PlankTOM5) to derived phytoplankton distributions from two independent satellite estimates, with a particular focus on diatom distributions. Global annual mean surface biomass estimates for diatoms vary between 0.23 mmol C m−3 and 0.77 mmol C m−3 in the models, and are comparable to a satellite-derived estimate (0.41 mmol C m−3). All models consistently simulate a higher zonal mean diatom biomass contribution in
APA, Harvard, Vancouver, ISO, and other styles
40

Lin, Xiaojuan, Ronald van der A, Jos de Laat, et al. "Monitoring and quantifying CO2 emissions of isolated power plants from space." Atmospheric Chemistry and Physics 23, no. 11 (2023): 6599–611. http://dx.doi.org/10.5194/acp-23-6599-2023.

Full text
Abstract:
Abstract. Top-down CO2 emission estimates based on satellite observations are of great importance for independently verifying the accuracy of reported emissions and emission inventories. Difficulties in verifying these satellite-derived emissions arise from the fact that emission inventories often provide annual mean emissions, while estimates from satellites are available only for a limited number of overpasses. Previous studies have derived CO2 emissions for power plants from the Orbiting Carbon Observatory-2 and 3 (OCO-2 and OCO-3) satellite observations of their exhaust plumes, but the acc
APA, Harvard, Vancouver, ISO, and other styles
41

Joiner, J., M. R. Schoeberl, A. P. Vasilkov, et al. "Accurate satellite-derived estimates of the tropospheric ozone impact on the global radiation budget." Atmospheric Chemistry and Physics Discussions 9, no. 2 (2009): 5505–47. http://dx.doi.org/10.5194/acpd-9-5505-2009.

Full text
Abstract:
Abstract. Estimates of the radiative forcing due to anthropogenically-produced tropospheric O3 are derived primarily from models. Here, we use tropospheric ozone and cloud data from several instruments in the A-train constellation of satellites as well as information from the GEOS-5 Data Assimilation System to accurately estimate the radiative effect of tropospheric O3 for January and July 2005. Since we cannot distinguish between natural and anthropogenic sources with the satellite data, our derived radiative effect reflects the unadjusted (instantaneous) effect of the total tropospheric O3 r
APA, Harvard, Vancouver, ISO, and other styles
42

Joiner, J., M. R. Schoeberl, A. P. Vasilkov, et al. "Accurate satellite-derived estimates of the tropospheric ozone impact on the global radiation budget." Atmospheric Chemistry and Physics 9, no. 13 (2009): 4447–65. http://dx.doi.org/10.5194/acp-9-4447-2009.

Full text
Abstract:
Abstract. Estimates of the radiative forcing due to anthropogenically-produced tropospheric O3 are derived primarily from models. Here, we use tropospheric ozone and cloud data from several instruments in the A-train constellation of satellites as well as information from the GEOS-5 Data Assimilation System to accurately estimate the radiative effect of tropospheric O3 for January and July 2005. Since we cannot distinguish between natural and anthropogenic sources with the satellite data, our derived radiative effect reflects the unadjusted (instantaneous) effect of the total tropospheric O3 r
APA, Harvard, Vancouver, ISO, and other styles
43

Cattani, E., A. Merino, and V. Levizzani. "Evaluation of Monthly Satellite-Derived Precipitation Products over East Africa." Journal of Hydrometeorology 17, no. 10 (2016): 2555–73. http://dx.doi.org/10.1175/jhm-d-15-0042.1.

Full text
Abstract:
Abstract East Africa experienced in the 2001–11 time period some of the worst drought events to date, culminating in the high-impact drought of 2010/11. Long-term monitoring of precipitation is thus essential, and satellite-based precipitation products can help in coping with the relatively sparse rain gauge ground networks of this area of the world. However, the complex topography and the marked geographic variability of precipitation in the region make precipitation retrieval from satellites problematic and product validation and intercomparison necessary. Six state-of-the-art monthly satell
APA, Harvard, Vancouver, ISO, and other styles
44

JOUGHIN, IAN, BEN E. SMITH, and IAN M. HOWAT. "A complete map of Greenland ice velocity derived from satellite data collected over 20 years." Journal of Glaciology 64, no. 243 (2017): 1–11. http://dx.doi.org/10.1017/jog.2017.73.

Full text
Abstract:
ABSTRACTWhile numerous maps of Greenland ice flow velocity exist, most have gaps in coverage and/or accuracy is limited. We processed a large volume of synthetic aperture radar and Landsat 8 imagery collected between 1995 and 2015 to produce a nearly complete map of ice flow velocity for Greenland at a far greater accuracy than most prior products. We evaluated the accuracy of this map by comparing it with a variety of measured and estimated velocities. For the slow-moving interior of the ice sheet, where estimates are determined from interferometric phase, the errors are ~2 m a−1 or better. F
APA, Harvard, Vancouver, ISO, and other styles
45

van Dijk, A. I. J. M., L. J. Renzullo, Y. Wada, and P. Tregoning. "A global water cycle reanalysis (2003–2012) merging satellite gravimetry and altimetry observations with a hydrological multi-model ensemble." Hydrology and Earth System Sciences 18, no. 8 (2014): 2955–73. http://dx.doi.org/10.5194/hess-18-2955-2014.

Full text
Abstract:
Abstract. We present a global water cycle reanalysis that merges water balance estimates derived from the Gravity Recovery And Climate Experiment (GRACE) satellite mission, satellite water level altimetry and off-line estimates from several hydrological models. Error estimates for the sequential data assimilation scheme were derived from available uncertainty information and the triple collocation technique. Errors in four GRACE storage products were estimated to be 11–12 mm over land areas, while errors in monthly storage changes derived from five global hydrological models were estimated to
APA, Harvard, Vancouver, ISO, and other styles
46

Porcheddu, Andrea, Ville Kolehmainen, Timo Lähivaara, and Antti Lipponen. "Post-process correction improves the accuracy of satellite PM2.5 retrievals." Atmospheric Measurement Techniques 17, no. 19 (2024): 5747–64. http://dx.doi.org/10.5194/amt-17-5747-2024.

Full text
Abstract:
Abstract. Estimates of PM2.5 levels are crucial for monitoring air quality and studying the epidemiological impact of air quality on the population. Currently, the most precise measurements of PM2.5 are obtained from ground stations, resulting in limited spatial coverage. In this study, we consider satellite-based PM2.5 retrieval, which involves conversion of high-resolution satellite retrieval of aerosol optical depth (AOD) into high-resolution PM2.5 retrieval. To improve the accuracy of the AOD-to-PM2.5 conversion, we employ the machine-learning-based post-process correction to correct the A
APA, Harvard, Vancouver, ISO, and other styles
47

ALLEY, KAREN E., TED A. SCAMBOS, ROBERT S. ANDERSON, HARIHAR RAJARAM, ALLEN POPE, and TERRY M. HARAN. "Continent-wide estimates of Antarctic strain rates from Landsat 8-derived velocity grids." Journal of Glaciology 64, no. 244 (2018): 321–32. http://dx.doi.org/10.1017/jog.2018.23.

Full text
Abstract:
ABSTRACTStrain rates are fundamental measures of ice flow and are used in a wide variety of glaciological applications including investigations of bed properties, calculations of basal mass balance on ice shelves, and constraints on ice rheological models. However, despite their extensive application, strain rates are calculated using a variety of methods and length scales and the details are often not specified. In this study, we compare the results of nominal and logarithmic strain-rate calculations based on a satellite-derived velocity field of the Antarctic ice sheet generated from Landsat
APA, Harvard, Vancouver, ISO, and other styles
48

GOMEZ GARCIA A., Martin, and Toshio KOIKE. "MULTISCALING ANALYSIS OF SATELLITE-DERIVED PRECIPITATION ESTIMATES LINKED TO IN-SITU MEASUREMENTS." Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 68, no. 4 (2012): I_169—I_174. http://dx.doi.org/10.2208/jscejhe.68.i_169.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Kuring, Norman, Marlon R. Lewis, Trevor Platt, and John E. O'Reilly. "Satellite-derived estimates of primary production on the northwest Atlantic continental shelf." Continental Shelf Research 10, no. 5 (1990): 461–84. http://dx.doi.org/10.1016/0278-4343(90)90050-v.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Myhre, G. "Consistency Between Satellite-Derived and Modeled Estimates of the Direct Aerosol Effect." Science 325, no. 5937 (2009): 187–90. http://dx.doi.org/10.1126/science.1174461.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography