The Cimel sunphotometer (CSPHOT) is a multi-channel, automatic sun-and-sky scanning radiometer that measures the direct solar irradiance and sky radiance at the Earth’s surface. It takes measurements at predetermined discrete wavelengths in the visible and near-infrared parts of the spectrum to determine atmospheric transmission and scattering properties. The CSPHOT only operates during daylight (sun above horizon).
CSPHOT
csphot > Cimel SunphotometerInstrument Type(s) > Baseline • External • Guest
Measurements
Locations
- Fixed
- AMF1
- AMF2
- AMF3
Active Instrument Locations
| Facility Name | Instrument Start Date |
|---|---|
| Central Facility, Barrow AK | 1997-07-30 |
| Graciosa Island, Azores, Portugal | 2013-09-28 |
| Central Facility, Lamont, OK | 1994-04-06 |
| Houston, TX; AMF1 (main site for TRACER) | 2021-04-14 |
| Oliktok Point, Alaska; AMF3 | 2013-10-03 |
Related Publications
2021
Kassianov E, E Cromwell, J Monroe, L Riihimaki, C Flynn, J Barnard, J Michalsky, G Hodges, Y Shi, and J Comstock. 2021. "Harmonized and high-quality datasets of aerosol optical depth at a US continental site, 1997–2018." Scientific Data, 8(1), 82 (2021), 10.1038/s41597-021-00866-2.
Research Highlight
Haywood J, S Abel, P Barrett, N Bellouin, A Blyth, K Bower, M Brooks, K Carslaw, H Che, H Coe, M Cotterell, I Crawford, Z Cui, N Davies, B Dingley, P Field, P Formenti, H Gordon, M de Graaf, R Herbert, B Johnson, A Jones, J Langridge, F Malavelle, D Partridge, F Peers, J Redemann, P Stier, K Szpek, J Taylor, D Watson-Parris, R Wood, H Wu, and P Zuidema. 2021. "The CLoud–Aerosol–Radiation Interaction and Forcing: Year 2017 (CLARIFY-2017) measurement campaign." Atmospheric Chemistry and Physics, 21(2), 10.5194/acp-21-1049-2021.
2020
Balmes K and Q FU. 2020. "The diurnally-averaged aerosol direct radiative effect and the use of the daytime-mean and insolation-weighted-mean solar zenith angles." Journal of Quantitative Spectroscopy and Radiative Transfer, 257, 107363, 10.1016/j.jqsrt.2020.107363.
Silva S, D Ridley, and C Heald. 2020. "Exploring the Constraints on Simulated Aerosol Sources and Transport across the North Atlantic with Island‐Based Sun Photometers." Earth and Space Science, 7(11), e2020EA001392, 10.1029/2020EA001392.
Vountas M, K Belinska, V Rozanov, L Lelli, L Mei, S Jafariserajehlou, and J Burrows. 2020. "Retrieval of aerosol optical thickness and surface parameters based on multi-spectral and multi-viewing space-borne measurements." Journal of Quantitative Spectroscopy and Radiative Transfer, 256, 10.1016/j.jqsrt.2020.107311.
Riihimaki L, C Flynn, A McComiskey, D Lubin, Y Blanchard, J Chiu, G Feingold, D Feldman, J Gristey, C Herrera, G Hodges, E Kassianov, S LeBlanc, A Marshak, J Michalsky, P Pilewskie, S Schmidt, R Scott, Y Shea, K Thome, R Wagener, and B Wielicki. 2020. "The Shortwave Spectral Radiometer for Atmospheric Science: Capabilities and Applications from the ARM User Facility." Bulletin of the American Meteorological Society, , 10.1175/BAMS-D-19-0227.1. ONLINE.
Abbasi B, Z Qin, W Du, J Fan, C Zhao, Q Hang, S Zhao, and S Li. 2020. "An Algorithm to Retrieve Total Precipitable Water Vapor in the Atmosphere from FengYun 3D Medium Resolution Spectral Imager 2 (FY-3D MERSI-2) Data." Remote Sensing, 12(21), 10.3390/rs12213469.
Marquardt Collow A, M Miller, L Trabachino, M Jensen, and M Wang. 2020. "Radiative heating rate profiles over the southeast Atlantic Ocean during the 2016 and 2017 biomass burning seasons." Atmospheric Chemistry and Physics, 20(16), 10.5194/acp-20-10073-2020.
Research Highlight
Kassianov E, E Cromwell, Y Shi, J Monroe, L Riihimaki, and C Flynn. 2020. Quality Control Aerosol Optical Depth Value-Added Product Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-247.
Marchand R. 2020. Macquarie Island Cloud and Radiation Experiment (MICRE) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-005.
View All Related Publications