Intrinsic uncertainty in the sub-daily satellite products at their native resolutions
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Date
2021
Authors
Haddad, Ziad S.
Turk, Francis J.
Utsumi, Nobuyuki
Kirstetter, Pierre-Emmanuel
Journal Title
Journal ISSN
Volume Title
Publisher
World Climate Research Programme
Abstract
Level-3 “sub-daily global merged satellite precipitation products” are typically reported on a fixed rectangular latitude-longitude grid at high spatial and temporal resolution (respectively 0.1º and ~0.5 hour). This section is specifically concerned with the uncertainties in these products at their reported resolution. The discussion reviews the uncertainties that are inherent in the retrieval and processing steps that are used to produce the Level-3 estimates. These include the detection error, the passive microwave (MW) and infrared (IR) estimation errors, and the error incurred when using frequent IR information to fill long revisit gaps between passive MW estimates. Advantages and disadvantages of Level-3 products are also summarized.
Description
DOI: 10.13021/gewex.precip.1.1
Keywords
Intrinsic uncertainty, Level-3, IMERG
Citation
Haddad, Z., F.J. Turk, N. Utsumi, and P.-E. Kirstetter, 2021: Intrinsic uncertainty in the sub-daily satellite products at their native resolutions in The Joint IPWG/GEWEX Precipitation Assessment (ed. R. Roca and Z.S. Haddad), WCRP Report 2/2021, World Climate Research Programme (WCRP), Geneva, Switzerland.