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History of earth radiation budget at Langley Research Center. Available online: https:\/\/ams.confex.com\/ams\/pdfpapers\/158948.pdf."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1170","DOI":"10.1175\/1520-0477(1984)065<1170:TERBE>2.0.CO;2","article-title":"The Earth Radiation Budget Experiment (ERBE)","volume":"65","author":"Barkstrom","year":"1984","journal-title":"BAMS"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"853","DOI":"10.1175\/1520-0477(1996)077<0853:CATERE>2.0.CO;2","article-title":"Clouds and the Earth\u2019s Radiant Energy System (CERES): An Earth observing system experiment","volume":"77","author":"Wielicki","year":"1996","journal-title":"Bull. Am. Meteorol. Soc."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"5936","DOI":"10.1109\/TGRS.2018.2828783","article-title":"On the Lessons Learned From the Operations of the ERBE Nonscanner Instrument in Space and the Production of the Nonscanner TOA Radiation Budget Data Set","volume":"56","author":"Wong","year":"2018","journal-title":"IEEE Trans. Geosci. Remote. Sens."},{"key":"ref_9","unstructured":"Earth Venture Continuity Radiation Budget Science Working Group (2020, May 14). Measurement and Instrument Requirement Recommendations for an Earth Venture Continuity Earth Radiation Budget Instrument. Available online: https:\/\/smd-prod.s3.amazonaws.com\/science-pink\/s3fs-public\/atoms\/files\/ERB_SWG_Rept_Draft_07242018_TAGGED.pdf."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Schifano, L., Smeesters, L., Geernaert, T., Berghmans, F., and Dewitte, S. (2020). Design and analysis of a next generation wide field-of-view Earth Radiation Budget radiometer. Remote. Sens., 12.","DOI":"10.3390\/rs12030425"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"25","DOI":"10.3847\/0004-637X\/830\/1\/25","article-title":"The Total Solar Irradiance Climate Data Record","volume":"830","author":"Dewitte","year":"2016","journal-title":"Astrophys. J."},{"key":"ref_12","first-page":"1073","article-title":"Cloud Detection with MODIS. Part II: Validation","volume":"25","author":"Ackerman","year":"2008","journal-title":"Am. Meteorol. Soc."},{"key":"ref_13","unstructured":"Skorka, O., Kane, P., and Ispasoiu, R. (2019, January 13\u201317). Color correction for RGB sensors with dual-band filters for in-cabin imaging applications. Proceedings of the Autonomous Vehicles and Machines Conference 2019, Burlingame, CA, USA."},{"key":"ref_14","unstructured":"P\u00e9rez, L.L., and Walker, R. (2018, January 4\u20139). GOMX-4\u2014The twin European mission for IOD purposes. Proceedings of the 32nd Annual AIAA\/USU Conference on Small Satellites, Logan, UT, USA."},{"key":"ref_15","unstructured":"Normanshire, C. (2020, May 12). Designing for As-Built Performance with High-Yield Optimization. Available online: https:\/\/my.zemax.com\/en-US\/Knowledge-Base\/kb-article\/?ka=KA-01837."},{"key":"ref_16","unstructured":"(2020, May 12). SCHOTT\u00ae Website. Available online: https:\/\/www.schott.com\/."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Mayer, B., Emde, C., Buras-Schnell, R., and Kylling, A. (2012). Radiative transfer: Methods and applications. 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