Monthly Satellite Precipitation Estimates (IMERG)

The Integrated Multi-satellitE Retrievals for GPM (IMERG) dataset provides global precipitation estimates. IMERG integrates information from NASA's Tropical Rainfall Measuring Mission (TRMM) and the Global Precipitation Measurement (GPM) satellites. This IMERG layer is a time-enabled image service of monthly precipitation accumulation rasters. Time Extent: June 2000 – Present Units: mm/month Cell Size: 0.1 degrees (~11km) Source Type: Stretched Pixel Type: 32 Bit Integer Data Projection: GCS WGS84 Mosaic Projection: GCS WGS84 Extent: Global Source: NASA 1 Month IMERG final Run Precipitation Accumulations Legend: Time-enabled Mosaic The IMERG layer is a time-enabled mosaic created from monthly precipitation rasters. Each raster can be accessed individually or in sequence to display the variation of precipitation over time. What can you do with this layer? The pop-up quickly displays the accumulated precipitation for a selected month and place. The layer can be used in analysis in a variety of water resources and environmental applications from the analysis of precipitation patterns to the creation of water balances. Source Data: The data behind this layer was created from GeoTIF files produced by NASA at 0.1 degrees resolution. The rasters were converted to Cloud Raster Format (CRF) and added to a mosaic dataset. Citation: Huffman, G.J., E.F. Stocker, D.T. Bolvin, E.J. Nelkin, Jackson Tan (2019), GPM IMERG Final Precipitation L3 1 month 0.1 degree x 0.1 degree V06, Greenbelt, MD, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: December 2021, 10.5067/GPM/IMERG/3B-MONTH/06 Revisions: Feb 13, 2023: Image service update. The data from June 2000 to September 2021 is from IMERG Final Run data V06. After September 2021, the data comes from IMERG Late Run data V06. IMERG Final Run v07 is expected to resume in early 2023. More information on IMERG Final Run. Aug 19, 2022: Image service update. Multidimensional info available. Feb 16, 2022: Image service update. Use of Cloud Raster Format (CRF) instead of Meta Raster Format (MRF). Mar 31, 2021: Official release of Feature Service offering.GPM综合多卫星反演数据集（Integrated Multi-satellitE Retrievals for GPM，简称IMERG）提供全球降水估算产品。IMERG整合了美国国家航空航天局（National Aeronautics and Space Administration，简称NASA）的热带降雨测量任务（Tropical Rainfall Measuring Mission，简称TRMM）与全球降水测量（Global Precipitation Measurement，简称GPM）卫星的观测数据。本IMERG图层为支持时间维度的月度降水累积栅格影像服务。 时间范围：2000年6月至今；单位：毫米/月；像元尺寸：0.1度（约11公里）；源数据类型：拉伸处理后的数据；像素类型：32位整数；数据投影：GCS WGS84；镶嵌投影：GCS WGS84；覆盖范围：全球；数据源：NASA 1个月IMERG最终运行版降水累积数据。 图例说明：支持时间维度的镶嵌影像。本IMERG图层为由月度降水栅格构建的支持时间维度的镶嵌影像，可单独或按序列访问各栅格，以展示降水随时间的变化特征。 该图层可实现以下功能：弹出窗口可快速显示选定月份与区域的降水累积量。该图层可广泛应用于各类水资源与环境分析场景，从降水格局分析到水平衡构建均可适用。 源数据说明：本图层依托的数据源自NASA以0.1度分辨率生成的GeoTIFF文件，这些栅格已被转换为云栅格格式（Cloud Raster Format，简称CRF）并添加至镶嵌数据集。 引用信息：Huffman, G.J., E.F. Stocker, D.T. Bolvin, E.J. Nelkin, Jackson Tan (2019), GPM IMERG Final Precipitation L3 1 month 0.1 degree x 0.1 degree V06, 马里兰州格林贝尔特，戈达德地球科学数据与信息服务中心（Goddard Earth Sciences Data and Information Services Center，简称GES DISC），访问时间：2021年12月，DOI: 10.5067/GPM/IMERG/3B-MONTH/06 修订记录： 2023年2月13日：影像服务更新。2000年6月至2021年9月的数据采用IMERG最终运行版V06数据；2021年9月之后的数据采用IMERG延迟运行版V06数据。IMERG最终运行版V07预计于2023年初恢复更新。更多IMERG最终运行版相关信息请查阅。 2022年8月19日：影像服务更新，新增多维信息支持。 2022年2月16日：影像服务更新，改用云栅格格式（CRF）替代元栅格格式（Meta Raster Format，简称MRF）。 2021年3月31日：要素服务正式发布。