The Global Precipitation Climatology Project (GPCP) Monthly Analysis (New Version 2.3) and a Review of 2017 Global Precipitation

被引：634

作者：

Adler, Robert F. ^{[1
]}

Sapiano, Mathew R. P. ^{[1
]}

Huffman, George J. ^{[2
]}

Wang, Jian-Jian ^{[1
]}

Gu, Guojun ^{[1
]}

Bolvin, David ^{[3
]}

Chiu, Long ^{[4
]}

Schneider, Udo ^{[5
]}

Becker, Andreas ^{[5
]}

Nelkin, Eric ^{[3
]}

Xie, Pingping ^{[6
]}

Ferraro, Ralph ^{[7
]}

Shin, Dong-Bin ^{[8
]}

机构：

[1] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] SSAI, Lanham, MD 20706 USA

[4] George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA

[5] Deutsch Wetterdienst, Global Precipitat Climatol Ctr, D-63067 Offenbach, Germany

[6] NOAA, Climate Predict Ctr, Natl Weather Serv, College Pk, MD 20740 USA

[7] NOAA, Natl Environm Satellite Data & Informat Serv, College Pk, MD 20740 USA

[8] Yonsei Univ, Dept Atmospher Sci, Seoul 03722, South Korea

来源：

ATMOSPHERE | 2018年 / 9卷 / 04期

关键词：

global precipitation; climate monitoring; Climate Data Record; DATASET; TEMPERATURE; PRODUCTS;

D O I：

10.3390/atmos9040138

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The new Version 2.3 of the Global Precipitation Climatology Project (GPCP) Monthly analysis is described in terms of changes made to improve the homogeneity of the product, especially after 2002. These changes include corrections to cross-calibration of satellite data inputs and updates to the gauge analysis. Over-ocean changes starting in 2003 resulted in an overall precipitation increase of 1.8% after 2009. Updating the gauge analysis to its final, high-quality version increases the global land total by 1.8% for the post-2002 period. These changes correct a small, incorrect dip in the estimated global precipitation over the last decade given by the earlier Version 2.2. The GPCP analysis is also used to describe global precipitation in 2017. The general La Nina pattern for 2017 is noted and the evolution from the early 2016 El Nino pattern is described. The 2017 global value is one of the highest for the 1979-2017 period, exceeded only by 2016 and 1998 (both El Nino years), and reinforces the small positive trend. Results for 2017 also reinforce significant trends in precipitation intensity (on a monthly scale) in the tropics. These results for 2017 indicate the value of the GPCP analysis, in addition to research, for climate monitoring.

引用

页数：14

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