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Comparing TRMM 3B42, CFSR and ground-based rainfall estimates as input for hydrological models, in data scarce regions: the Upper Blue Nile Basin, Ethiopia

A. W. Worqlul, A. S. Collick, S. A. Tilahun, S. Langan, T. H. M. Rientjes, T. S. Steenhuis
2015 Hydrology and Earth System Sciences Discussions  
The objective of this study is to compare the advantages and the limitation of commonly used high-resolution satellite rainfall products as input to hydrological models as compared to sparsely populated  ...  Finally surprisingly, the ground based gauge performed better for both watersheds (with the exception of extreme events) than TRMM and CFSR satellite rainfall estimates.  ...  The data providers of Tropical Rainfall Measuring Mission (TRMM) product (3B42) and Climate Forecast System Reanalysis (CFSR) are also acknowledged.  ... 
doi:10.5194/hessd-12-2081-2015 fatcat:4gpvzbqecbd35ddll2sdytp6lq

Impacts of climate change on Blue Nile flows using bias-corrected GCM scenarios

M. E. Elshamy, I. A. Seierstad, A. Sorteberg
2009 Hydrology and Earth System Sciences  
These were used to drive a fine-scale hydrological model of the Nile Basin to assess their impacts on the flows of the upper Blue Nile at Diem, which accounts for about 60% of the mean annual discharge  ...  Assuming no change or moderate changes in rainfall, the simulations presented here indicate that the water balance of the upper Blue Nile basin may become more moisture constrained in the future.  ...  The great inter-model divergence in rainfall is consistent with the summary given by Conway (2000) for rainfall over the Blue Nile region.  ... 
doi:10.5194/hess-13-551-2009 fatcat:ggo4hqbcf5c3vdiia3ux2aa7pe

Multitemporal comparative analysis of TRMM-3B42 satellite-estimated rainfall with surface gauge data at basin scales: daily, decadal and monthly evaluations

Yashon O. Ouma, Titus Owiti, Emmanuel Kipkorir, Joel Kibiiy, Ryutaro Tateishi
2012 International Journal of Remote Sensing  
In order to examine the reliability and applicability of Tropical Rainfall Measuring Mission (TRMM) and Other Satellites Precipitation Product (3B42) Version 6 (TRMM-3B42) at basin scales, satellite rainfall  ...  The averaged spatial-temporal comparisons showed that the TRMM-3B42 rainfall estimates were much closer to the geostatistically interpolated gauge data, with minimal biases of −0.40 mm day −1 , −1.78 mm  ...  Acknowledgements We thank the Kenyan Meteorological Department for providing the rainfall gauge data in Nzoia River Basin.  ... 
doi:10.1080/01431161.2012.701347 fatcat:276wdjtprrc4vfewxveqv6jq6m

SWAT use of gridded observations for simulating runoff – a Vietnam river basin study

M. T. Vu, S. V. Raghavan, S. Y. Liong
2012 Hydrology and Earth System Sciences  
Wherever possible, available station data are also used for comparison.  ...  The varied results by using these datasets indicate that although the gauge based and satellite-gauge merged products use some ground truth data, the different interpolation techniques and merging algorithms  ...  The comparison statistics for 3 rainfall stations on a daily scale over a 5-yr period 2001-2005 are shown in Table 3 .  ... 
doi:10.5194/hess-16-2801-2012 fatcat:qnzwzne6lza4jl4sghfk56ubhi

SWAT use of gridded observations for simulating runoff – a Vietnam river basin study

M. T. Vu, S. V. Raghavan, S. Y. Liong
2011 Hydrology and Earth System Sciences Discussions  
Wherever possible, available station data are also used for comparison.  ...  The varied results by using these datasets indicate that although the gauge based and satellite-gauge merged products use some ground truth data, the different interpolation techniques and merging algorithms  ...  The comparison statistics for 3 rainfall stations on a daily scale over a 5-yr period 2001-2005 are shown in Table 3 .  ... 
doi:10.5194/hessd-8-10679-2011 fatcat:nbf2zzhz65dmnjktezpzlf6we4

Estimation of Lake Outflow from the Poorly Gauged Lake Tana (Ethiopia) Using Satellite Remote Sensing Data

Zheng Duan, Hongkai Gao, Changqing Ke
2018 Remote Sensing  
The lack of in-situ measurements highlights the need for the innovative application of satellite remote sensing.  ...  In order to improve our understanding of the hydrological cycle at various scales and in poorly and ungauged basins, more monitoring and observations are indeed necessary.  ...  Thanks also go to all providers for making relevant satellite data or simulation outputs available to the public.  ... 
doi:10.3390/rs10071060 fatcat:njbvc7kjwbauxd7e6gvjgwxbbu

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Inne Vanderkelen, Nicole P. M. van Lipzig, Wim Thiery
2018 Hydrology and Earth System Sciences Discussions  
Lake Victoria is the largest lake in Africa and one of the two major sources of the Nile River.  ...  The uncalibrated computation of the individual water balance terms yield lake level fluctuations that closely match the levels retrieved from satellite altimetry.  ...  We thank Daniel Kull for providing the daily outflow measurements of Lake Victoria and John Sutcliffe for his contributions.  ... 
doi:10.5194/hess-2018-11 fatcat:omaiy5bzsvfw3cbu3bowtpqjpq

Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983–2020): Towards Climate Change Resilience and Adaptation

Niranga Alahacoon, Mahesh Edirisinghe, Matamyo Simwanda, ENC Perera, Vincent R. Nyirenda, Manjula Ranagalage
2021 Remote Sensing  
In terms of climate zones, in the tropical northern desert climates, tropical northern peninsulas, and tropical grasslands, there is a significant increase in rainfall over the entire timeframe of the  ...  The study finds that the highest annual rainfall trends were recorded in Rwanda (11.97 mm/year), the Gulf of Guinea (river basin 8.71 mm/year), the tropical rainforest climate zone (8.21 mm/year), and  ...  Evaluating Satellite-Based Diurnal Cycles of Precipitation in the African Tropics. J. Appl. Meteorol. Clim. 2016, 55, 23–39. [CrossRef] 48.  ... 
doi:10.3390/rs14010096 fatcat:2hboinn2grdb7htxts5nw7ylji

Assessment of GPM and TRMM Precipitation Products over Singapore

Mou Tan, Zheng Duan
2017 Remote Sensing  
This study is one of the earliest assessments of IMERG and a comparison of it with TMPA products in Singapore.  ...  TMPA 3B42RT) in estimating precipitation over Singapore that represents a typical tropical region.  ...  We thank all organizations for providing the GPM and TRMM products freely to public.  ... 
doi:10.3390/rs9070720 fatcat:4evmyqcilbf2dcs2wyxbjreyou

Rainfall Spatial Estimations: A Review from Spatial Interpolation to Multi-Source Data Merging

Qingfang Hu, Zhe Li, Leizhi Wang, Yong Huang, Yintang Wang, Lingjie Li
2019 Water  
cycle across different space-time scales.  ...  Rainfall is one of the most basic meteorological and hydrological elements.  ...  Adhikary et al. (2017) [34] In two river basins in Victoria State of Australia, the comparison was made for the performancet of monthly rainfall spatial interpolation using five methods including OCK  ... 
doi:10.3390/w11030579 fatcat:awws4kfij5aqnbzyi5ampk3b4m

Evapotranspiration and its Components in the Nile River Basin Based on Long-Term Satellite Assimilation Product

Isaac Kwesi Nooni, Guojie Wang, Daniel Fiifi T. Hagan, Jiao Lu, Waheed Ullah, Shijie Li
2019 Water  
Based on long-term satellite ET data assimilated by the Global Land Evaporation Amsterdam Model (GLEAM), we analyzed changes in ET and its components over the Nile River Basin from 1980 to 2014.  ...  ET increases in arid-semiarid regions were due to water availability from crop irrigation fields in the Nile Plain. Precipitation was the dominant limiting driver of ET in the region.  ...  Our analysis contributes information on the reliability, confidence, and usefulness of remote sensing data products in capturing the water dynamics of a region.  ... 
doi:10.3390/w11071400 fatcat:6ld574rinrafrpwlivcssoapae

Changes in land cover, rainfall and stream flow in Upper Gilgel Abbay catchment, Blue Nile basin – Ethiopia

T. H. M. Rientjes, A. T. Haile, E. Kebede, C. M. M. Mannaerts, E. Habib, T. S. Steenhuis
2011 Hydrology and Earth System Sciences  
In this study we evaluated changes in land cover and rainfall in the Upper Gilgel Abbay catchment in the Upper Blue Nile basin and how changes affected stream flow in terms of annual flow, high flows and  ...  However, for the wet season months of June, July and August rainfall has increased. In the period 1973-2005, the annual flow of the catchment decreased by 12.1 %.  ...  We also acknowledge the Ethiopian Meteorological Agency and the Ethiopian Ministry of Water Resources for their support by supplying the time series data for rainfall and stream flow.  ... 
doi:10.5194/hess-15-1979-2011 fatcat:wmovbtffvvaufmxuapvwfqvcyi

Climate Change Impact on Agricultural Water Resources Variability in the Northern Highlands of Ethiopia [chapter]

Shimelis G. Setegn, David Rayner, Assefa M. Melesse, Bijan Dargahi, Ragahavan Srinivasan, Anders Wörman
2011 Nile River Basin  
Projected changes in precipitation and temperature in the basin for two future seasons (2046-2065 and 2080-2100) were analyzed using outputs from fifteen GCMs.  ...  This chapter reports the use of global climate models (GCM's) and application of a hydrological model to investigate agricultural water resources' sensitivity to climate change in the Lake Tana Basin,  ...  We also would like to thank the Ministry of Water Resources of Ethiopia and the Ethiopian Meteorological Agency for the data provided and used in this study.  ... 
doi:10.1007/978-94-007-0689-7_12 fatcat:mra2wvnce5defdhlapdx4oghwm

An increase in methane emissions from tropical Africa between 2010 and 2016 inferred from satellite data

Mark F. Lunt, Paul I. Palmer, Liang Feng, Christopher M. Taylor, Hartmut Boesch, Robert J. Parker
2019 Atmospheric Chemistry and Physics Discussions  
White Nile.  ...  </strong> Emissions of methane (CH<sub>4</sub>) from tropical ecosystems, and how they respond to changes in climate, represent one of the biggest uncertainties associated with the global CH<sub>4</sub  ...  the inversion period Monthly anomalies of precipitation over the Lake Victoria basin from the Tropical Rainfall Measuring Mission (TRMM, green), GRACE LWE over the basin (purple) and Lake Victoria water  ... 
doi:10.5194/acp-2019-477 fatcat:adzk673qdvcirh4sycjjnu26me

A climatology of dust emission events from northern Africa using long-term surface observations

S. M. Cowie, P. Knippertz, J. H. Marsham
2014 Atmospheric Chemistry and Physics Discussions  
South of this, where stations are directly influenced by the summer monsoon, the annual cycle in FDE is more variable.  ...  Thresholds are estimated as the wind speed for which there is a 50% probability of dust emission and are then used to calculate strong wind frequency (SWF) and dust uplift potential (DUP), where the latter  ...  This work is funded by the European Research Council as part of the "Desert Storms" project under grant 257543.  ... 
doi:10.5194/acpd-14-7425-2014 fatcat:65tdg6li7bcftmda6uzw5csdoa
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