In this study, the following remotely sensed precipitation
products are used for drought analysis:
The Global Precipitation Climatology Project (GPCP;
Adler et al 2003, Huffman et al 2009) obtained
from merged analysis of satellite data and rain gauge
measurements (available since 1979). The rain gauge data
used in GPCP are analysed and assembled by the Climate
Prediction Center (CPC) of the National Oceanic and
Atmospheric Administration (NOAA), and by the Global
Precipitation Climatology Centre (GPCC) of the Deutscher
Wetterdienst.
The Precipitation Estimation from Remotely Sensed Information
using Artificial Neural Networks (PERSIANN;
Sorooshian et al 2000, Hsu et al 1997), which uses a neural
network classification algorithm to derive precipitation
estimates based on IR data after near real-time adjustment
using microwave scans (available since 2000).
The Tropical Rainfall Measuring Mission (TRMM)
Multisatellite Precipitation Analysis (TMPA; Huffman
et al 2007) real-time (hereafter, TRMM-RT). The TRMMRT
algorithm is mainly based on the microwave-based
estimates of precipitation with the gaps filled with
Infrared-based precipitation estimates (Huffman et al
2007).
In this study, the following remotely sensed precipitationproducts are used for drought analysis: The Global Precipitation Climatology Project (GPCP;Adler et al 2003, Huffman et al 2009) obtainedfrom merged analysis of satellite data and rain gaugemeasurements (available since 1979). The rain gauge dataused in GPCP are analysed and assembled by the ClimatePrediction Center (CPC) of the National Oceanic andAtmospheric Administration (NOAA), and by the GlobalPrecipitation Climatology Centre (GPCC) of the DeutscherWetterdienst. The Precipitation Estimation from Remotely Sensed Informationusing Artificial Neural Networks (PERSIANN;Sorooshian et al 2000, Hsu et al 1997), which uses a neuralnetwork classification algorithm to derive precipitationestimates based on IR data after near real-time adjustmentusing microwave scans (available since 2000). The Tropical Rainfall Measuring Mission (TRMM)Multisatellite Precipitation Analysis (TMPA; Huffmanet al 2007) real-time (hereafter, TRMM-RT). The TRMMRTalgorithm is mainly based on the microwave-basedestimates of precipitation with the gaps filled withInfrared-based precipitation estimates (Huffman et al2007).
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