NASA’s Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm combines information from the GPM satellite constellation to estimate precipitation over the majority of the Earth's surface. IMERG is particularly valuable over areas of Earth's surface that lack ground-based precipitation-measuring instruments, including oceans and ...

2014年3月12日 · IMERG (Integrated Multi-satellite Retrievals for GPM, GPM综合多卫星检索)是一种GPM生成三级产品的算法，它结合来自 GPM 中所有无源微波仪器的数据提供降雨估计。 该算法旨在精细时间和空间尺度上对所有卫星微波降水估计值以及微波校准红外 (IR) 卫星估计值、降水量 …

The algorithm for the Integrated Multi-satellitE Retrievals for GPM (IMERG) has now been upgraded to Version 07. IMERG V07 involves a wide range of changes to all aspects of the algorithm, many of which are implemented in response to feedback on V06, which was the first time the IMERG record spanned the TRMM-GPM eras.

The PPS has completed reprocessing GPM IMERG data for IMERG V07B. The IMERG dataset now includes TRMM-era data going back to January 1998. As of IMERG V7B, full coverage is provided at all latitudes, except for a few boxes very near the poles,

2020年4月11日 · The Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement (GPM) mission (IMERG) is a US GPM Science Team precipitation product. IMERG uses inter-calibrated estimates from the international constellation of …

The broad concept of IMERG is to take advantage of the available satellite constellation capable of observing precipitation, using the Global Precipitation Measurement (GPM) and Tropical Rainfall Measuring Mission (TRMM) satellites as the calibration reference, to produce a gridded precipitation product at a high resolution that caters to users ...

2025年1月16日 · 全球降水测量（GPM）是一项国际卫星任务，每三小时提供一次全球雨雪的下一代观测数据。 用于全球降水测量的综合多卫星检索（IMERG）是一种统一算法，结合全球降水测量星座中所有被动微波仪器的数据提供降水量估算。 该算法旨在对所有卫星微波降水量估算值进行相互校准、合并和内插，并结合微波校准的红外（IR）卫星估算值、降水量计分析值以及可能的其他降水量估算值，以精细的时间和空间尺度对全球降水测量卫星（TRMM）和全球降水测量卫 …

2025年3月12日 · NASA GPM-IMERG: The Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm combines information from the GPM satellite constellation to estimate precipitation over the majority of the Earth's surface.

2019年2月24日 · IMERG是专为全球降水计划GPM设计的最新一代多卫星融合反演降水数据.它充分借鉴融合了TRMM时代成熟的卫星降水反演算法：TMPA、CMORPH、PERSIANN-CCS (Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks-Cloud Classification System) [31]，结合了GPM卫星群提供的被动微波数据和红外数据，并通过GPCC [32] (Global Precipitation Climatology Centre，全球降水气候中心)的校准分析进行数据 …

2024年10月24日 · IMERG（Integrated Multi-satellitE Retrievals for GPM）数据集的构建基于全球降水测量任务（GPM）的核心卫星和多个合作伙伴卫星的观测数据。 通过融合微波、红外和雷达等多种传感器的观测信息，IMERG采用先进的算法，如贝叶斯融合和时空插值技术，实现了对全球 …