Jae N. Lee, Robert F. Cahalan, Dong L. Wu,
... and Climate Experiment)/TIM (Total Irradiance Monitor), ACRIMSAT (Active Cavity Radiometer Irradiance Monitor Satellite)/ACRIM III, and SOHO (Solar and Heliospheric Observatory)/ ...
Tópico(s): Atmospheric Ozone and Climate
2015 - Elsevier BV | Journal of Atmospheric and Solar-Terrestrial Physics
... by the UARS ACRIM II (upper atmosphere research satellite active cavity radiometer irradiance monitor), EURECA SOVA 1 and SOVA 2 (European retrievable carrier platform solar variability experiments), ERBS ERBE (Earth Radiation Budget Satellite Earth Radiation Budget Experiment), Nimbus 7 ERB, and ...
Tópico(s): Atmospheric Ozone and Climate
1996 - American Geophysical Union | Journal of Geophysical Research Atmospheres
R. C. Willson, S. Gulkis, M. A. Janssen, H. S. Hudson, G. A. Chapman,
... measurements of total solar irradiance, made by the active cavity radiometer irradiance monitor on the Solar Maximum Mission satellite, show the irradiance to have been variable throughout ...
Tópico(s): Stellar, planetary, and galactic studies
1981 - American Association for the Advancement of Science | Science
Douglas V. Hoyt, H. Lee Kyle, J. R. Hickey, Robert H. Maschhoff,
... 0.3255% higher. Therefore if the Nimbus 7 satellite continues to operate properly until a period of about 1 year after the launch of UARS with its active cavity radiometer irradiance monitor (ACRIM), it appears that the differences between Nimbus 7, SMM ACRIM, and UARS ACRIM can be measured to within a few hundredths of a percent. A self‐consistent set of solar irradiance measurements from several satellites over nearly two solar cycles appears feasible.
Tópico(s): Adaptive optics and wavefront sensing
1992 - American Geophysical Union | Journal of Geophysical Research Atmospheres
Nicola Scafetta, R. C. Willson, Jae N. Lee, Dong L. Wu,
... in 1978. This record requires comparisons of overlapping satellite observations with adequate relative precisions to provide useful long term TSI trend information. Herein we briefly review the active cavity radiometer irradiance monitor physikalisch-meteorologisches observatorium davos (ACRIM-PMOD) TSI composite ...
Tópico(s): Atmospheric Ozone and Climate
2019 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Ann T. Mecherikunnel, R. B. Lee, H. Lee Kyle, Gene R. Major,
... Experiment (ERBE) on board the Earth Radiation Budget Satellite (ERBS) and on the National Oceanic and Atmospheric Administration spacecraft NOAA 9 and NOAA 10 are compared with the solar total irradiance data obtained from the Solar Maximum Mission (SMM) Active Cavity Radiometer Irradiance Monitor 1 (ACRIM 1), the sounding rockets, and the ...
Tópico(s): Calibration and Measurement Techniques
1988 - American Geophysical Union | Journal of Geophysical Research Atmospheres
A new modular Active Cavity Radiometer Irradiance Monitor (ACRIM) has been developed for the Earth Observation System (EOS) ACRIM III experiment. ACRIM III will be launched on a dedicated small satellite (ACRIMSAT) in late 1999 for a five year EOS Phase I total solar irradiance (TSI) monitoring mission. The new ...
Tópico(s): Atmospheric Ozone and Climate
1999 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
... Experiment (ERBE) on board the Earth Radiation Budget Satellite (ERBS), and the Solar Maximum Mission Active Cavity Radiometer Irradiance Monitor-1 (SMM/ACRIM), for the overlap period 25 October 1984 to 5 July 1989. Both measurements used active-cavity radiometers (ACR). For days when measurements are available from both satellites, the mean difference in the irradiance values is 2,18 W·m-2. The ...
Tópico(s): Atmospheric Ozone and Climate
1993 - IOP Publishing | Metrologia
Steven Dewitte, A. Joukoff, D. Crommelynck, R. B. Lee, R. Helizon, Robert S. Wilson,
... Radiometric Reference (SARR) adjustment coefficient applicable to the Active Cavity Radiometer Irradiance Monitor II (ACRIM II) during the IEH 3 period is 1.000438 with a one sigma uncertainty of 18 ppm, compared to the 1993 SARR adjustment coefficient of 1.000258. (2) The solar monitor on the Earth Radiation Budget Satellite (ERBS), with a 1993 SARR adjustment coefficient of ...
Tópico(s): Calibration and Measurement Techniques
2001 - American Geophysical Union | Journal of Geophysical Research Atmospheres
Robert B. Lee, Robert S. Wilson, G. Louis Smith, Kathryn A. Bush, Susan Thomas, Dhirendra K. Pandey, Jack Paden,
... September 2004 period, the NASA Earth Radiation Budget Satellite (ERBS)/ERBE nonscanning active cavity radiometers (ACR) were used to monitor long-term changes in the earth radiation budget components of the incoming total solar irradiance (TSI), earth-reflected TSI, and earth-emitted outgoing ...
Tópico(s): Atmospheric aerosols and clouds
2004 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Robert B. Lee, G. Louis Smith, Takmeng Wong, Kathryn A. Bush,
... through August 2005, the NASA Earth Radiation Budget Satellite (ERBS)/Earth Radiation Budget Experiment (ERBE) nonscanning active cavity radiometers (ACR) were used to monitor long-term changes in the earth radiation budget components of the incoming total solar irradiance (TSI), earth-reflected TSI, and earth-emitted outgoing ...
Tópico(s): Atmospheric aerosols and clouds
2008 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
... conclusion is based on data obtained from the Active Cavity Radiometer Irradiance Monitor (ACRIM) that is incorporated onto the Solar Maximum Mission satellite. The results are significant for studies of the ...
Tópico(s): Solar Radiation and Photovoltaics
1982 - Wiley | Eos
R B Lee, Michael A. Gibson, Netra D. Shivakumar, Robert S. Wilson, H. Lee Kyle, Ann T. Mecherikunnel,
... 2 as the mean value of the solar irradiance, normalized to the mean Earth/Sun distance. The monitors are electrical substitution, active-cavity radiometers with estimated measurement precisions and accuracies of less ...
Tópico(s): Solar Radiation and Photovoltaics
1991 - IOP Publishing | Metrologia
T. N. Woods, G. J. Rottman, J. W. Harder, G. M. Lawrence, W. E. McClintock, Greg Kopp, C. K. Pankratz,
... the Total Irradiance Monitor (TIM), the Spectral Irradiance Monitor (SIM), the SOLar STellar Irradiance Comparison Experiment (SOLSTICE), and the XUV Photometer System (XPS). The TIM is an active cavity radiometer similar in design to previous cavity radiometers, such ...
Tópico(s): solar cell performance optimization
2000 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
The Active Cavity Radiometer (ACR), an accurate absolute pyrheliometer, has been developed at the Jet Propulsion Laboratory for measurements of total solar irradience. They have been used to discover a -2.2% error in the International Pyrheliometric Scale and to make measurements in balloon flight experiments yielding a solar constant value of 136.6 (±0.7) mw/cm2. New ACR's are being developed to monitor the total output of solar optical radiation in balloon, satellite and space shuttle experiments with longterm absolute uncertainty ...
Tópico(s): Impact of Light on Environment and Health
1976 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE