Roca, RémyHaddad, Ziad S.Akimoto, Fumie F.Alexander, LisaBehrangi, AliHuffman, GeorgeKato, SeijiKidd, ChrisKirstetter, Pierre-EmmanuelKubota, TakujiKummerow, ChrisL’Ecuyer, TristanLevizzani, VincenzoMaggioni, VivianaMassari, ChristianMasunaga, HirohikoSchröder, MarcTapiador, Francisco J.Turk, Francis J.Utsumi, Nobuyuki2021-07-092021-07-092021Roca, R., Z.S. Haddad, F.F. Akimoto, L. Alexander, A. Behrangi, G. Huffman, S. Kato, C. Kidd, P.E. Kirstetter, T. Kubota, C. Kummerow, T.S. L’Ecuyer, V. Levizzani, V. Maggioni, C. Massari, H. Masunaga, M. Schröder, F.J. Tapiador, F.J. Turk and N. Utsumi, 2021: The Joint IPWG/GEWEX Precipitation Assessment. WCRP Report 2/2021, World Climate Research Programme (WCRP): Geneva, Switzerland, 125 pp.https://hdl.handle.net/1920/11987https://doi.org/10.13021/gewex.precipThis report reviews the current state of precipitation products, and includes assessments of sub-daily global satellite precipitation products, discussions of various climate applications of precipitation products, and deliberations on emerging directions and the future of precipitation products.en-USAttribution 3.0 IGOPrecipitation productsUncertaintyLevel-3Water and energy budgetWater and energy budget closureClimate variabilityTrendsQuality AssuranceClimate modelsClimate model validationProduct intercomparisonGlobal mean precipitationPrecipitation processesClimate model evaluationFuture precipitation productsUncertainty estimationSnowRadarFuture precipitation constellation10.13021/gewex.precip