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SM2RAIN-Climate,一个用于气候学研究的每月全球长期降雨数据集
Hamidreza Mosaffa1, Paolo Filippucci2, Christian Massari2
1Research Institute for Geo-Hydrological Protection, National Research Council, Perugia, Italy. h.mosaffa@irpi.cnr.it.
Scientific data
|November 1, 2023
概括
一个新的全球降雨数据集SM2RAIN-Climate估计了来自卫星土壤水分的降雨量. 这种独立产品表现出强的性能,与现有数据集的相关性超过0.8,有助于气候和水资源研究.
科学领域:
- 气候学 气候学 气候学
- 水文学的水文学
- 遥感 遥感 遥感 遥感
背景情况:
- 长期降雨数据对于气候研究,水资源管理,农业和水文学至关重要.
- 卫星土壤湿度观测提供了一个独立降雨估计的独特来源.
- 之前的SM2RAIN (土壤湿度到雨水) 产品展示了全球潜力.
研究的目的:
- 介绍SM2RAIN-气候数据集,这是一个全新的全球每月降雨产品.
- 使用欧洲航天局 (ESA) 的气候变化倡议 (CCI) 土壤湿度v06.1数据.
- 提供24年 (1998-2021) 全球降雨记录,分辨率为1度.
主要方法:
- 使用应用到ESA CCI土壤湿度数据的SM2RAIN算法推导降雨估计.
- 以1度的空间分辨率生成一个全球月度降雨产物.
- 评估SM2RAIN-气候性能与已确定的最先进的降雨产品相比.
主要成果:
- 在全球大多数地区,SM2RAIN-Climate表现强.
- SM2RAIN-Climate和其他产品之间的相关系数始终超过0.8.
- 该数据集显示了作为捕捉全球降雨趋势的独立产品的潜力.
结论:
- SM2RAIN-Climate提供了可靠和准确的长期全球降雨数据集.
- 它与其他卫星降雨产品的独立性提高了其用于验证和趋势分析的价值.
- 该产品支持气候学研究和在水资源管理和农业中的应用.
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