A 44-Year Daily Gridded Precipitation Dataset for Asia Based on a Dense Network of Rain Gauges
A 44-Year Daily Gridded Precipitation Dataset for Asia Based on a Dense Network of Rain Gauges
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DOI：
10.2151/sola.2009-035
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发表时间：
2009
期刊：
影响因子：
1.9
通讯作者：
A. Yatagai;O. Arakawa;K. Kamiguchi;H. Kawamoto;M. I. Nodzu;A. Hamada
中科院分区：
文献类型：
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作者：
A. Yatagai;O. Arakawa;K. Kamiguchi;H. Kawamoto;M. I. Nodzu;A. Hamada
1961-2004年的每日网格降水数据集是通过亚洲水资源评估高分辨率观测数据集成项目（APHRODITE）的活动收集亚洲各地的雨量计观测数据而创建的。我们的有效观测站数量在5 000至12 000个之间，相当于全球电信系统网络提供的数据的2.3至4.5倍，后者用于大多数每日网格降水产品。APHRODITE的每日网格降水量（APHRO_V0902）是唯一一个长期（1961年以后）的大陆尺度每日产品，包含亚洲（包括喜马拉雅山和中东山区）的每日雨量计数据的密集网络。该产品有助于亚洲水资源评估、气候变化诊断、统计降尺度以及使用卫星验证数值模型模拟和高分辨率降水估计等研究。我们在http://www.chikyu.ac.jp/precip/上发布了亚洲季风、俄罗斯和中东的APHRO_V0902数据集（0.5° × 0.5°和0.25° × 0.25°网格）。在这里，我们展示了APHRO_V0902的算法和输入数据。
A daily gridded precipitation dataset for 1961-2004 was created by collecting rain gauge observation data across Asia through the activities of the Asian Precipitation—Highly Resolved Observational Data Integration Towards the Evaluation of Water Resources (APHRODITE) project. Our number of valid stations was between 5000 and 12,000, representing 2.3 to 4.5 times the data available through the Global Telecommunication System network, which were used for most daily grid precipitation products. APHRODITE’s daily gridded precipitation (APHRO_V0902) is the only long-term (1961 onward) continental-scale daily product that contains a dense network of daily rain gauge data for Asia including the Himalayas and mountainous areas in the Middle East. The product contributes to studies such as the evaluation of Asian water resources, diagnosis of climate change, statistical downscaling, and verification of numerical model simulation and high-resolution precipitation estimates using satellites. We released APHRO_V0902 datasets for Monsoon Asia, Russia and the Middle East (on 0.5° × 0.5° and 0.25° × 0.25° grids) at http://www.chikyu.ac.jp/precip/. Herein, we show the algorithm and input data of APHRO_V0902.