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Improved Calibration through SMAP RFI Change DetectionAnthropogenic Radio-Frequency Interference (RFI) drove both the SMAP (Soil Moisture Active Passive) microwave radiometer hardware and Level 1 science algorithm designs to use new technology and techniques for the first time on a spaceflight project. Care was taken to provide special features allowing the detection and removal of harmful interference in order to meet the error budget. Nonetheless, the project accepted a risk that RFI and its mitigation would exceed the 1.3-K error budget. Thus, RFI will likely remain a challenge afterwards due to its changing and uncertain nature. To address the challenge, we seek to answer the following questions: How does RFI evolve over the SMAP lifetime? What calibration error does the changing RFI environment cause? Can time series information be exploited to reduce these errors and improve calibration for all science products reliant upon SMAP radiometer data? In this talk, we address the first question.
Document ID
20170010340
Acquisition Source
Goddard Space Flight Center
Document Type
Presentation
Authors
Piepmeier, Jeffrey (NASA Goddard Space Flight Center Greenbelt, MD, United States)
De Amici, Giovanni (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mohammed, Priscilla (Morgan State Univ. Baltimore, MD, United States)
Peng, Jinzheng (Universities Space Research Association Greenbelt, MD, United States)
Date Acquired
October 26, 2017
Publication Date
October 12, 2017
Subject Category
Meteorology And Climatology
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN47537
Meeting Information
Meeting: Science Utilization of SMAP (SUSMAP) Meeting
Location: Cambridge, MA
Country: United States
Start Date: October 19, 2017
End Date: October 20, 2017
Sponsors: Jet Propulsion Lab., California Inst. of Tech.
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Passive L-band radiometer

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