Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS)
A site-specific ocean color remote sensing algorithm was developed and used to convert Multispectral Airborne Radiometer System (MARS) spectral radiance measurements to chlorophyll-a concentration profiles along aircraft tracklines in the Greenland Sea. The analysis is described and the results give...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
1989
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/19890015413 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:19890015413 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:19890015413 2023-05-15T16:28:27+02:00 Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) Mueller, James L. Trees, Charles C. Unclassified, Unlimited, Publicly available Mar 31, 1989 application/pdf http://hdl.handle.net/2060/19890015413 unknown Document ID: 19890015413 Accession ID: 89N24784 http://hdl.handle.net/2060/19890015413 No Copyright CASI OCEANOGRAPHY NASA-CR-184856 NAS 1.26:184856 CHORS-TM-89-001 1989 ftnasantrs 2019-07-21T04:17:34Z A site-specific ocean color remote sensing algorithm was developed and used to convert Multispectral Airborne Radiometer System (MARS) spectral radiance measurements to chlorophyll-a concentration profiles along aircraft tracklines in the Greenland Sea. The analysis is described and the results given in graphical or tabular form. Section 2 describes the salient characteristics and history of development of the MARS instrument. Section 3 describes the analyses of MARS flight segments over consolidated sea ice, resulting in a set of altitude dependent ratios used (over water) to estimate radiance reflected by the surface and atmosphere from total radiance measured. Section 4 presents optically weighted pigment concentrations calculated from profile data, and spectral reflectances measured in situ from the top meter of the water column; this data was analyzed to develop an algorithm relating chlorophyll-a concentrations to the ratio of radiance reflectances at 441 and 550 nm (with a selection of coefficients dependent upon whether significant gelvin presence is implied by a low ratio of reflectances at 410 and 550 nm). Section 5 describes the scaling adjustments which were derived to reconcile the MARS upwelled radiance ratios at 410:550 nm and 441:550 nm to in situ reflectance ratios measured simultaneously on the surface. Section 6 graphically presents the locations of MARS data tracklines and positions of the surface monitoring R/V. Section 7 presents stick-plots of MARS tracklines selected to illustrate two-dimensional spatial variability within the box covered by each day's flight. Section 8 presents curves of chlorophyll-a concentration profiles derived from MARS data along survey tracklines. Significant results are summarized in Section 1. Other/Unknown Material Greenland Greenland Sea Sea ice NASA Technical Reports Server (NTRS) Greenland |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
OCEANOGRAPHY |
spellingShingle |
OCEANOGRAPHY Mueller, James L. Trees, Charles C. Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
topic_facet |
OCEANOGRAPHY |
description |
A site-specific ocean color remote sensing algorithm was developed and used to convert Multispectral Airborne Radiometer System (MARS) spectral radiance measurements to chlorophyll-a concentration profiles along aircraft tracklines in the Greenland Sea. The analysis is described and the results given in graphical or tabular form. Section 2 describes the salient characteristics and history of development of the MARS instrument. Section 3 describes the analyses of MARS flight segments over consolidated sea ice, resulting in a set of altitude dependent ratios used (over water) to estimate radiance reflected by the surface and atmosphere from total radiance measured. Section 4 presents optically weighted pigment concentrations calculated from profile data, and spectral reflectances measured in situ from the top meter of the water column; this data was analyzed to develop an algorithm relating chlorophyll-a concentrations to the ratio of radiance reflectances at 441 and 550 nm (with a selection of coefficients dependent upon whether significant gelvin presence is implied by a low ratio of reflectances at 410 and 550 nm). Section 5 describes the scaling adjustments which were derived to reconcile the MARS upwelled radiance ratios at 410:550 nm and 441:550 nm to in situ reflectance ratios measured simultaneously on the surface. Section 6 graphically presents the locations of MARS data tracklines and positions of the surface monitoring R/V. Section 7 presents stick-plots of MARS tracklines selected to illustrate two-dimensional spatial variability within the box covered by each day's flight. Section 8 presents curves of chlorophyll-a concentration profiles derived from MARS data along survey tracklines. Significant results are summarized in Section 1. |
format |
Other/Unknown Material |
author |
Mueller, James L. Trees, Charles C. |
author_facet |
Mueller, James L. Trees, Charles C. |
author_sort |
Mueller, James L. |
title |
Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
title_short |
Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
title_full |
Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
title_fullStr |
Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
title_full_unstemmed |
Biooptical variability in the Greenland Sea observed with the Multispectral Airborne Radiometer System (MARS) |
title_sort |
biooptical variability in the greenland sea observed with the multispectral airborne radiometer system (mars) |
publishDate |
1989 |
url |
http://hdl.handle.net/2060/19890015413 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland Sea Sea ice |
genre_facet |
Greenland Greenland Sea Sea ice |
op_source |
CASI |
op_relation |
Document ID: 19890015413 Accession ID: 89N24784 http://hdl.handle.net/2060/19890015413 |
op_rights |
No Copyright |
_version_ |
1766018102202466304 |