{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T18:07:25Z","timestamp":1764785245202,"version":"build-2065373602"},"reference-count":44,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T00:00:00Z","timestamp":1699920000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Office of Naval Research","award":["62435N"],"award-info":[{"award-number":["62435N"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>An increasing number of commercial nanosatellite-based Earth-observing sensors are providing high-resolution images for much of the coastal ocean region. Traditionally, to improve the accuracy of normalized water-leaving radiance (nLw) estimates, sensor gains are computed using in-orbit vicarious calibration methods. The initial series of Planet nanosatellite sensors were primarily designed for land applications and are missing a second near-infrared band, which is typically used in selecting aerosol models for atmospheric correction over oceanographic regions. This study focuses on the vicarious calibration of Planet sensors and the duplication of its red band for use in both the aerosol model selection process and as input to bio-optical ocean product algorithms. Error measurements show the calibration performed well at the Marine Optical Buoy location near Lanai, Hawaii. Further validation was performed using in situ data from the Aerosol Robotic Network\u2014Ocean Color platform in the northern Adriatic Sea. Bio-optical ocean color products were generated and compared with products from the Visual Infrared Imaging Radiometric Suite sensor. This approach for sensor gain generation and usage proved effective in increasing the accuracy of nLw measurements for bio-optical ocean product algorithms.<\/jats:p>","DOI":"10.3390\/rs15225359","type":"journal-article","created":{"date-parts":[[2023,11,15]],"date-time":"2023-11-15T00:47:48Z","timestamp":1700009268000},"page":"5359","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Assessing Planet Nanosatellite Sensors for Ocean Color Usage"],"prefix":"10.3390","volume":"15","author":[{"given":"Mark D.","family":"Lewis","sequence":"first","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"given":"Brittney","family":"Jarreau","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0829-6294","authenticated-orcid":false,"given":"Jason","family":"Jolliff","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"given":"Sherwin","family":"Ladner","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"given":"Timothy A.","family":"Lawson","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"given":"Sean","family":"McCarthy","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 1009, Stennis Space Center, MS 39529, USA"}]},{"given":"Paul","family":"Martinolich","sequence":"additional","affiliation":[{"name":"Peraton, Building 1103, Stennis Space Center, MS 39529, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4725-5380","authenticated-orcid":false,"given":"Marcos","family":"Montes","sequence":"additional","affiliation":[{"name":"Naval Research Laboratory, Building 2, Washington, DC 20375, USA"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Curzi, G., Modenini, D., and Tortora, P. 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