Predicting spectral and PAR light attenuation in Greenlandic coastal waters
The spectral quality and penetration of light are key parameters controlling the productivity of Greenlandic fjords. Solar elevation and sea ice play an important role, but during the increasing ice free period and summer months in particular, light is also regulated by water constituents. We presen...
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ftdtupubl:oai:pure.atira.dk:publications/1964843a-d40d-4bc5-a0db-07134a5cdd0f 2023-05-15T16:22:46+02:00 Predicting spectral and PAR light attenuation in Greenlandic coastal waters Murray, Ciarán Markager, Stiig Stedmon, Colin 2015 https://orbit.dtu.dk/en/publications/1964843a-d40d-4bc5-a0db-07134a5cdd0f eng eng info:eu-repo/semantics/restrictedAccess Murray , C , Markager , S & Stedmon , C 2015 , ' Predicting spectral and PAR light attenuation in Greenlandic coastal waters ' , ASLO Aquatic Sciences Meeting 2015 , Granada , Spain , 22/02/2015 - 27/02/2015 . conferenceObject 2015 ftdtupubl 2022-08-14T08:23:04Z The spectral quality and penetration of light are key parameters controlling the productivity of Greenlandic fjords. Solar elevation and sea ice play an important role, but during the increasing ice free period and summer months in particular, light is also regulated by water constituents. We present models for spectral and PAR (photosynthetically active radiation) attenuation in two contrasting Greenlandic fjords, Godthåbsfjord (SW Greenland) and Young Sound (NE Greenland). The fjords differ in the character and concentrations of optically active components present: dissolved organic material (CDOM), phytoplankton pigments and inorganic particles. These differences are due in part to hydrography and to the sources of meltwater: respectively, fjord-terminating and land-terminating glaciers. We present a model to explain the variation in spectral and PAR irradiance in terms of the variation in optically active components. The ability of our model to predict irradiance is compared with that of 2 existing models. Conference Object Godthåbsfjord Greenland greenlandic Sea ice Technical University of Denmark: DTU Orbit Greenland |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
The spectral quality and penetration of light are key parameters controlling the productivity of Greenlandic fjords. Solar elevation and sea ice play an important role, but during the increasing ice free period and summer months in particular, light is also regulated by water constituents. We present models for spectral and PAR (photosynthetically active radiation) attenuation in two contrasting Greenlandic fjords, Godthåbsfjord (SW Greenland) and Young Sound (NE Greenland). The fjords differ in the character and concentrations of optically active components present: dissolved organic material (CDOM), phytoplankton pigments and inorganic particles. These differences are due in part to hydrography and to the sources of meltwater: respectively, fjord-terminating and land-terminating glaciers. We present a model to explain the variation in spectral and PAR irradiance in terms of the variation in optically active components. The ability of our model to predict irradiance is compared with that of 2 existing models. |
format |
Conference Object |
author |
Murray, Ciarán Markager, Stiig Stedmon, Colin |
spellingShingle |
Murray, Ciarán Markager, Stiig Stedmon, Colin Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
author_facet |
Murray, Ciarán Markager, Stiig Stedmon, Colin |
author_sort |
Murray, Ciarán |
title |
Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
title_short |
Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
title_full |
Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
title_fullStr |
Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
title_full_unstemmed |
Predicting spectral and PAR light attenuation in Greenlandic coastal waters |
title_sort |
predicting spectral and par light attenuation in greenlandic coastal waters |
publishDate |
2015 |
url |
https://orbit.dtu.dk/en/publications/1964843a-d40d-4bc5-a0db-07134a5cdd0f |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Godthåbsfjord Greenland greenlandic Sea ice |
genre_facet |
Godthåbsfjord Greenland greenlandic Sea ice |
op_source |
Murray , C , Markager , S & Stedmon , C 2015 , ' Predicting spectral and PAR light attenuation in Greenlandic coastal waters ' , ASLO Aquatic Sciences Meeting 2015 , Granada , Spain , 22/02/2015 - 27/02/2015 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766010872233197568 |