论文平台收录未分类未分类Disdrometerglobal precipitation measurement (GPM)ground validationItalyorbit boost
Evaluation of GPM DPR Precipitation Products After Orbit Boost Using Disdrometers in Italy
利用意大利雨滴谱仪评估轨道抬升后的GPM DPR降水产品
Sabina Angeloni; Elisa Adirosi; Luca Baldini; Mario Montopoli; Alessandro Bracci; Vincenzo Capozzi; Clizia Annella; Simone Scapin; Paolo Valisa; Lorenzo Luini; Roberto Nebuloni; Roberto Cremonini; Renzo Bechini; David B. Wolff
- Journal / Publication
- IEEE Geoscience and Remote Sensing Letters
- Published
- 时间暂未填写
论文摘要
Precipitation measurements are crucial for improving climate models and weather forecasting, with satellite-based radar systems, such as the dual precipitation radar (DPR) on board the Global Precipitation Measurement Core Observatory (GPM CO), playing a pivotal role in enhancing observational coverage, especially in remote regions. In November 2023, an orbit boost maneuver raised the GPM CO’s altitude from 400 to 435 km, potentially influencing the quality of DPR data. This study evaluates the impact of this altitude increase on the accuracy of DPR-derived precipitation products by comparing data acquired before and after the orbit boost. We assess the performance of DPR measurements against ground-based laser disdrometer data collected in Italy between May 2018 and November 2024. The results highlight the effects of the altitude change on rainfall retrievals, contributing to a better understanding of how orbital adjustments can affect satellite-based precipitation observations.