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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Similarities and improvements of GPM IMERG upon TRMM 3B42 precipitation product under complex topographic and climatic conditions over Hexi region, Northeastern Tibetan Plateau
TL;DR: Li et al. as discussed by the authors comprehensively evaluated and compared this newly released precipitation product (IMERG V05B) and its predecessor TRMM 3B42V7 based upon the ground-based observations under complex topographic and climatic conditions over the Hexi Region in the northwest arid region of China.
Journal ArticleDOI
Amazon wildfires: Scenes from a foreseeable disaster
Paulo M. Brando,Paulo M. Brando,Marcia N. Macedo,Divino Silvério,Ludmila Rattis,Lucas N. Paolucci,Ane Alencar,Michael T. Coe,Cristina Amorim +8 more
TL;DR: The southern Amazon has become more flammable and vulnerable to wildfires during recent droughts as discussed by the authors, and recent increases in deforestation suggest that Brazil is moving in the opposite direction.
Journal ArticleDOI
On the use of indices to study extreme precipitation on sub-daily and daily timescales
Lisa V. Alexander,Hayley J. Fowler,Margot Bador,Ali Behrangi,Markus G. Donat,Markus G. Donat,Robert Dunn,Chris Funk,James Goldie,Elizabeth Lewis,Marine Rogé,Sonia I. Seneviratne,V. Venugopal +12 more
TL;DR: In this article, the authors outline the history of the rationale and use of these indices, the types of indices that are frequently used and the advantages and pitfalls in analysing them, and suggest that to advance this area differences between data products, limitations in satellite-based estimation processes, and the inherent challenges of scale need to be better understood.
Journal ArticleDOI
Future climate change scenarios in Central America at high spatial resolution
Pablo Imbach,Sin Chan Chou,André Lyra,Daniela Rodrigues,Daniel Andrés Rodriguez,Dragan Latinović,Gracielle Siqueira,Adan Silva,Lucas Garofolo,Selena Georgiou +9 more
TL;DR: Assessment of the downscaling projections of climate change over Central America at 8-km resolution using the Eta Regional Climate Model, driven by the HadGEM2-ES simulations of RCP4.5 emission scenario suggests decreasing water availability in the future scenario.
Journal ArticleDOI
Comparison and evaluation of gridded precipitation datasets for streamflow simulation in data scarce watersheds of Ethiopia
TL;DR: In this article, the authors evaluated the hydrologic performance of gridded precipitation datasets for streamflow simulation in Ethiopia using the Soil and Water Assessment Tool (SWAT) model in two watersheds of the Lake Ziway basin.
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