Ocean color retrieval using DroneSpex : a miniature imaging spectrometer
DroneSpex, a miniature hyperspectral imager, has been tested for ocean color measurements and retrieval of chlorophyll concentration. The work was carried out at Norut AS, Tromsø, Norway and calibration of the spec- trometer was made at The University Centre in Svalbard (UNIS), Norway Field data wer...
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ftluleatu:oai:DiVA.org:ltu-43345 2023-05-15T18:29:48+02:00 Ocean color retrieval using DroneSpex : a miniature imaging spectrometer Nordkvist, Karin 2008 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-43345 eng eng http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-43345 Local 13a5cb5d-cdf9-4ab1-b512-f28a9c2b45cf info:eu-repo/semantics/openAccess Technology Teknik Student thesis info:eu-repo/semantics/bachelorThesis text 2008 ftluleatu 2022-10-25T20:51:48Z DroneSpex, a miniature hyperspectral imager, has been tested for ocean color measurements and retrieval of chlorophyll concentration. The work was carried out at Norut AS, Tromsø, Norway and calibration of the spec- trometer was made at The University Centre in Svalbard (UNIS), Norway Field data were collected during the spring bloom of phytoplankton in Sk- agerrak 2007, where the instrument was mounted on a passenger ferry. Reflectance measurements and chlorophyll estimates were validated against measurements made by the Norwegian Institute for Water Research, NIVA. The DroneSpex reflectance measurements agree well with the validation data, but has low or no correlation with the NIVA chlorophyll estimates. A chlorophyll concentration retrieval algorithm adapted to oceanic waters was used, while the water in Skagerrak is of coastal type. It is a well knownfact that algorithms for oceanic waters break down in more optically complex coastal waters, where dissolved organic substances and suspended materials other than phytoplankton have a significant influence on the reflectance spectrum. The results will be used to establish operational ocean color capabilities on the Norut UAV (Unmanned Aerial Vehicle) platform. Validerat; 20101217 (root) Bachelor Thesis Svalbard Tromsø UNIS University Centre in Svalbard Luleå University of Technology Publications (DiVA) Svalbard Norway Tromsø Niva ENVELOPE(23.913,23.913,66.136,66.136) |
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Open Polar |
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Luleå University of Technology Publications (DiVA) |
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language |
English |
topic |
Technology Teknik |
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Technology Teknik Nordkvist, Karin Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
topic_facet |
Technology Teknik |
description |
DroneSpex, a miniature hyperspectral imager, has been tested for ocean color measurements and retrieval of chlorophyll concentration. The work was carried out at Norut AS, Tromsø, Norway and calibration of the spec- trometer was made at The University Centre in Svalbard (UNIS), Norway Field data were collected during the spring bloom of phytoplankton in Sk- agerrak 2007, where the instrument was mounted on a passenger ferry. Reflectance measurements and chlorophyll estimates were validated against measurements made by the Norwegian Institute for Water Research, NIVA. The DroneSpex reflectance measurements agree well with the validation data, but has low or no correlation with the NIVA chlorophyll estimates. A chlorophyll concentration retrieval algorithm adapted to oceanic waters was used, while the water in Skagerrak is of coastal type. It is a well knownfact that algorithms for oceanic waters break down in more optically complex coastal waters, where dissolved organic substances and suspended materials other than phytoplankton have a significant influence on the reflectance spectrum. The results will be used to establish operational ocean color capabilities on the Norut UAV (Unmanned Aerial Vehicle) platform. Validerat; 20101217 (root) |
format |
Bachelor Thesis |
author |
Nordkvist, Karin |
author_facet |
Nordkvist, Karin |
author_sort |
Nordkvist, Karin |
title |
Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
title_short |
Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
title_full |
Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
title_fullStr |
Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
title_full_unstemmed |
Ocean color retrieval using DroneSpex : a miniature imaging spectrometer |
title_sort |
ocean color retrieval using dronespex : a miniature imaging spectrometer |
publishDate |
2008 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-43345 |
long_lat |
ENVELOPE(23.913,23.913,66.136,66.136) |
geographic |
Svalbard Norway Tromsø Niva |
geographic_facet |
Svalbard Norway Tromsø Niva |
genre |
Svalbard Tromsø UNIS University Centre in Svalbard |
genre_facet |
Svalbard Tromsø UNIS University Centre in Svalbard |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-43345 Local 13a5cb5d-cdf9-4ab1-b512-f28a9c2b45cf |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766213192807088128 |