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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Journal ArticleDOI
Climatologies at high resolution for the earth’s land surface areas
Dirk Nikolaus Karger,Olaf Conrad,Jürgen Böhner,Tobias Kawohl,Holger Kreft,Rodrigo Wilber Soria-Auza,Niklaus E. Zimmermann,H. Peter Linder,Michael Kessler +8 more
TL;DR: In this article, the authors presented the CHELSA (Climatologies at high resolution for the earth's land surface areas) data of downscaled model output temperature and precipitation estimates of the ERA-Interim climatic reanalysis to a high resolution of 30'arc'sec.
Journal ArticleDOI
Climatologies at high resolution for the earth's land surface areas
Dirk Nikolaus Karger,Olaf Conrad,Jürgen Böhner,Tobias Kawohl,Holger Kreft,Rodrigo Wilber Soria-Auza,Niklaus E. Zimmermann,H. Peter Linder,Michael Kessler +8 more
TL;DR: It is shown that CHELSA climatological data has a similar accuracy as other products for temperature, but that its predictions of precipitation patterns are better and can increase the accuracy of species range predictions.
Journal ArticleDOI
MSWEP: 3-hourly 0.25° global gridded precipitation (1979–2015) by merging gauge, satellite, and reanalysis data
Hylke E. Beck,Albert van Dijk,Vincenzo Levizzani,Jaap Schellekens,Diego G. Miralles,Diego G. Miralles,Brecht Martens,Ad de Roo +7 more
TL;DR: The Multi-Source Weighted-Ensemble Precipitation (MSWEP) dataset as discussed by the authors is a global precipitation dataset for the period 1979-2015 with a 3-hourly temporal and 0.25° spatial resolution designed for hydrological modeling.
Journal ArticleDOI
MSWEP V2 Global 3-Hourly 0.1° Precipitation: Methodology and Quantitative Assessment
Hylke E. Beck,Eric F. Wood,Ming Pan,Colby K. Fisher,Diego G. Miralles,Albert van Dijk,Tim R. McVicar,Robert F. Adler +7 more
TL;DR: The Multi-Source Weighted Ensemble Precipitation (MSWEP) dataset as discussed by the authors is a gridded precipitation P dataset spanning 1979-2017, which is unique in several aspects: i) full global co...
Journal ArticleDOI
Global-scale evaluation of 22 precipitation datasets using gauge observations and hydrological modeling
Hylke E. Beck,Noemi Vergopolan,Ming Pan,Vincenzo Levizzani,Albert van Dijk,Graham P. Weedon,Luca Brocca,Florian Pappenberger,George J. Huffman,Eric F. Wood +9 more
TL;DR: In this paper, a comprehensive evaluation of 22 gridded (quasi-)global (sub-)daily precipitation (P) datasets for the period 2000-2016 was conducted, and 13 non-gauge-corrected P datasets were evaluated using daily P gauge observations.
References
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Journal ArticleDOI
Geostatistical analysis of rainfall
TL;DR: A review of geostatistical methods used for kriging, exemplified where appropriate by daily rain gauge data from Ethiopia is provided in this paper, where the use of climatological variograms and the appropriate treatment of rainy and nonrainy areas are discussed.
Journal ArticleDOI
Using constructed analogs to improve the skill of National Multi-Model Ensemble March–April–May precipitation forecasts in equatorial East Africa
TL;DR: In this paper, the authors implemented and evaluated a hybrid forecast approach that uses constructed analogs (CA) to improve the National Multi-Model Ensemble (NMME) precipitation forecasts over equatorial eastern Africa (hereafter referred to as EA, 2°S to 8°N and 36°E to 46°E).
Journal ArticleDOI
La Niña diversity and Northwest Indian Ocean Rim teleconnections
TL;DR: In this article, the authors examined the dynamical forcing of precipitation during October-December (OND) and March-May (MAM) over East Africa and during December-March (DJFM) over Central-Southwest Asia for 1950-2010 associated with four tropical Pacific SST patterns characteristic of La Nina events, the cold phase of ENSO.
Globally Gridded Satellite (GridSat) Observations for Climate Studies
Kenneth R. Knapp,Steve Ansari,Caroline L. Bain,Mark A. Bourassa,Michael J. Dickinson,Chris Funk,Chip N. Helms,Christopher C. Hennon,Christopher D. Holmes,George J. Huffman,James P. Kossin,Hai-Tien Lee,Alexander Loew,Gudrun Magnusdottir +13 more
TL;DR: The International Satellite Cloud Climatology Project (ISMCCP) as mentioned in this paper provides an archive of full-resolution geostationary data at 3 hourly intervals since 1983, including observations from the visible, infrared window, and infrared water vapor channels.
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