The climate hazards infrared precipitation with stations--a new environmental record for monitoring extremes.
Chris Funk,Pete Peterson,Martin Landsfeld,Diego Pedreros,James P. Verdin,Shraddhanand Shukla,Gregory Husak,James Rowland,Laura Harrison,Andrew Hoell,Joel Michaelsen +10 more
TLDR
The Variable Infiltration Capacity model, a novel blending procedure incorporating the spatial correlation structure of CCD-estimates to assign interpolation weights, is presented and it is shown that CHIRPS can support effective hydrologic forecasts and trend analyses in southeastern Ethiopia.Abstract:
The Climate Hazards group Infrared Precipitation with Stations (CHIRPS) dataset builds on previous approaches to ‘smart’ interpolation techniques and high resolution, long period of record precipitation estimates based on infrared Cold Cloud Duration (CCD) observations. The algorithm i) is built around a 0.05° climatology that incorporates satellite information to represent sparsely gauged locations, ii) incorporates daily, pentadal, and monthly 1981-present 0.05° CCD-based precipitation estimates, iii) blends station data to produce a preliminary information product with a latency of about 2 days and a final product with an average latency of about 3 weeks, and iv) uses a novel blending procedure incorporating the spatial correlation structure of CCD-estimates to assign interpolation weights. We present the CHIRPS algorithm, global and regional validation results, and show how CHIRPS can be used to quantify the hydrologic impacts of decreasing precipitation and rising air temperatures in the Greater Horn of Africa. Using the Variable Infiltration Capacity model, we show that CHIRPS can support effective hydrologic forecasts and trend analyses in southeastern Ethiopia.read more
Citations
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Seasonal predictability of Ethiopian Kiremt rainfall and forecast skill of ECMWF's SEAS5 model
Muhammad Azhar Ehsan,Muhammad Azhar Ehsan,Michael K. Tippett,Andrew W. Robertson,Mansour Almazroui,Mansour Almazroui,Muhammad Ismail,Tufa Dinku,Nachiketa Acharya,Asher Siebert,Jemal Seid Ahmed,Jemal Seid Ahmed,Asaminew Teshome +12 more
TL;DR: In this paper, the first empirical orthogonal function of observed rainfall explains 50.6% of the total variability and is characterized by positive rainfall anomalies largely confined over the northwestern and central-western regions of Ethiopia.
Journal ArticleDOI
Delineation of Groundwater Potential Zones (GWPZs) in a Semi-Arid Basin through Remote Sensing, GIS, and AHP Approaches
José Luis Uc Castillo,Diego Armando Martínez Cruz,José Alfredo Ramos Leal,José Tuxpan Vargas,Silvia Alicia Rodríguez Tapia,Ana Elizabeth Marín Celestino +5 more
TL;DR: In this paper , the authors proposed a method to delineate and assess GWPZs in a semi-arid basin of San Luis Potosi (SLP), Mexico, through the integration of Remote Sensing (RS), Geographic Information System (GIS), and Analytic Hierarchy Process (AHP).
Journal ArticleDOI
Evaluation the Performance of Several Gridded Precipitation Products over the Highland Region of Yemen for Water Resources Management
TL;DR: Overall, in absence of better data, CHIRPS data can be used for hydrological and climate change studies on the highland region of Yemen where precipitation is often episodical and measurement records are spatially and temporally limited.
Journal ArticleDOI
The Sensitivity of Rainfall Characteristics to Cumulus Parameterization Schemes from a WRF Model. Part I: A Case Study Over East Africa During Wet Years
TL;DR: In this article, the suitability of a weather research and forecasting model in simulating mean rainfall, number of rainy days (NRDs), intensity of rainy day and their frequencies is investigated over East Africa for selected wet years.
Journal ArticleDOI
Downscaling projections of climate change in Sao Tome and Principe Islands, Africa
Sin Chan Chou,André Lyra,Jorge Gomes,Daniel Andrés Rodriguez,Minella Alves Martins,Nicole Costa Resende,Priscila Tavares,Claudine Pereira Dereczynski,Isabel L. Pilotto,Alessandro Marques Martins,Luís Felipe Alves de Carvalho,José Luiz Lima Onofre,Idalécio Major,Manuel Penhor,Adérito Santana +14 more
TL;DR: In this article, the authors dynamically downscale the global model projections to 4-km resolution and assess the climate change in the Sao Tome and Principe islands using the Eta regional climate model.
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