Measurement of the Point Response Functions of CERES Scanning Radiometers

Some applications of data from the Clouds and the Earth's Radiant Energy System (CERES) scanning radiometer require the use of the point response function (PRF), which describes the influence of radiance from each point on the measurement. A radiance source for the measurement of the PRF of the CERES instruments was built and installed into the Radiometric Calibration Facility, in which the CERES instruments have been calibrated. The design and application of the PRF source and the computation of the PRF from these measurements are described. In order to compare the PRF based on measurements with the theoretical PRF, it is necessary to account for the finite size of the beam from the source. The use of the PRF source and the analysis of the data are demonstrated by application to the FM-5 instrument. The measured results compare well with theory for the CERES instruments and are presented for FM-5.

[1]  G. Louis Smith,et al.  Transfer function considerations for the CERES scanning radiometer , 1991, Other Conferences.

[2]  Kory J. Priestley,et al.  Ceres flight model 5 on NPP: Pre-launch performance and sensor data record validation , 2011, 2011 IEEE International Geoscience and Remote Sensing Symposium.

[3]  B. Barkstrom,et al.  Clouds and the Earth's Radiant Energy System (CERES): An Earth Observing System Experiment , 1996 .

[4]  William J. Emery,et al.  Achieving satellite instrument calibration for climate change , 2007 .

[5]  Kory J. Priestley,et al.  Clouds and Earth Radiant Energy System: From Design to Data , 2014, IEEE Transactions on Geoscience and Remote Sensing.

[6]  F O Huck,et al.  Photosensor aperture shaping to reduce aliasing in optical-mechanical line-scan imaging systems. , 1973, Applied optics.

[7]  Robert Benjamin Lee,et al.  The Clouds and the Earth's Radiant Energy System (CERES) Sensors and Preflight Calibration Plans , 1996 .

[8]  Harry Cikanek.  Joint Polar Satellite System: The United States Next Generation Civilian Polar Orbiting Environmental Satellite System (Invited Presentation) , 2016 .

[9]  Mark A. Folkman,et al.  Enhancements to the radiometric calibration facility for the Clouds and the Earth's Radiant Energy System instruments , 1991, Defense, Security, and Sensing.

[10]  Robert Benjamin Lee,et al.  Optical design of the CERES telescope , 2002, Optics + Photonics.

[11]  G L Smith.  Effects of time response on the point spread function of a scanning radiometer. , 1994, Applied optics.

[12]  Bruce R. Barkstrom,et al.  Earth radiation budget measurements: pre-ERBE, ERBE, and CERES , 1990, Defense, Security, and Sensing.

[13]  Kory J. Priestley,et al.  Validation of Geolocation of Measurements of the Clouds and the Earth's Radiant Energy System (CERES) Scanning Radiometers aboard Three Spacecraft , 2009 .

[14]  Mark A. Folkman,et al.  Radiometric calibration plan for the Clouds and the Earth's Radiant Energy System scanning instruments , 1991, Defense, Security, and Sensing.

[15]  G. Louis Smith,et al.  Evaluation of the clouds and the Earth's radiant energy system (CERES) scanner pointing accuracy using a coastline detection system , 1998, Optics + Photonics.

[16]  M. Haeffelin,et al.  Predicted dynamic electrothermal performance of thermistor bolometer radiometers for Earth radiation budget applications. , 1997, Applied optics.

[17]  Robert Benjamin Lee,et al.  Use of first-principle numerical models to enhance the understanding of the CERES point spread function , 1997, Remote Sensing.

[18]  G. Louis Smith,et al.  Spatial sampling errors for a satellite-borne scanning radiometer , 1991, Defense, Security, and Sensing.

[19]  Kory J. Priestley,et al.  The point response functions of CERES instruments aboard the Terra and Aqua spacecrafts over the mission-to-date , 2012, Optics & Photonics - Optical Engineering + Applications.

[20]  S K Park,et al.  Information efficiency of line-scan imaging mechanisms. , 1981, Applied optics.

[21]  Edwin F. Harrison,et al.  Climate and the earth's radiation budget , 1989 .

[22]  Susan Thomas,et al.  Reality check: a point response function (PRF) comparison of theory to measurements for the clouds and the Earth's radiant energy system (CERES) tropical rainfall measuring mission (TRMM) instrument , 1997, Defense, Security, and Sensing.

[23]  Robert Benjamin Lee,et al.  Point response characteristics for the CERES/EOS-PM, FM3, and FM4 instruments , 1999 .

[24]  Kory J. Priestley,et al.  Validation of Point Spread Functions of CERES Radiometers by the Use of Lunar Observations , 2010 .