Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018
Canopy spectral reflectance collected measured in 2015–2018 along the NGEE-Arctic tram located on the Barrow Environmental Observatory (BEO), Barrow, Alaska. Measurements were made using a PP-Systems UniSpec-DC spectrometer mounted on an automatically operated instrument cart. Spectra were collected...
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ftosti:oai:osti.gov:1183993 2024-04-07T07:49:08+00:00 Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 Serbin, Shawn McMahon, Andrew Lewin, Keith Chafe, Oriana Curtis, Bryan Ely, Kim 2024-03-08 application/pdf http://www.osti.gov/servlets/purl/1183993 https://www.osti.gov/biblio/1183993 https://doi.org/10.5440/1183993 unknown http://www.osti.gov/servlets/purl/1183993 https://www.osti.gov/biblio/1183993 https://doi.org/10.5440/1183993 doi:10.5440/1183993 54 Environmental Sciences 2024 ftosti https://doi.org/10.5440/1183993 2024-03-13T01:48:20Z Canopy spectral reflectance collected measured in 2015–2018 along the NGEE-Arctic tram located on the Barrow Environmental Observatory (BEO), Barrow, Alaska. Measurements were made using a PP-Systems UniSpec-DC spectrometer mounted on an automatically operated instrument cart. Spectra were collected at 137 stop points at 0.5 m intervals along the tram transect. Transect runs were collected daily, or multiple times per day, from April or May through to August or September each year. Downwelling radiance was measured using a 2 meter fiber optic cable connected to a cosine diffuser. Upwelling (i.e. reflected) radiance was measured using a 2 meter cable connected to a 12 degree field-of-view (FOV) lens. Canopy reflectance was calculated using the ratio of upwelling to downwelling radiance measured over a 99.99% reflectance Spectralon standard measured at the start of each measurement set. Unprocessed spectral data are presented in .spu files. Metadata are provided in csv files, and the instrument manual (pdf). The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a 15-year research effort (2012-2027) to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically ... Other/Unknown Material Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
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54 Environmental Sciences |
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54 Environmental Sciences Serbin, Shawn McMahon, Andrew Lewin, Keith Chafe, Oriana Curtis, Bryan Ely, Kim Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
topic_facet |
54 Environmental Sciences |
description |
Canopy spectral reflectance collected measured in 2015–2018 along the NGEE-Arctic tram located on the Barrow Environmental Observatory (BEO), Barrow, Alaska. Measurements were made using a PP-Systems UniSpec-DC spectrometer mounted on an automatically operated instrument cart. Spectra were collected at 137 stop points at 0.5 m intervals along the tram transect. Transect runs were collected daily, or multiple times per day, from April or May through to August or September each year. Downwelling radiance was measured using a 2 meter fiber optic cable connected to a cosine diffuser. Upwelling (i.e. reflected) radiance was measured using a 2 meter cable connected to a 12 degree field-of-view (FOV) lens. Canopy reflectance was calculated using the ratio of upwelling to downwelling radiance measured over a 99.99% reflectance Spectralon standard measured at the start of each measurement set. Unprocessed spectral data are presented in .spu files. Metadata are provided in csv files, and the instrument manual (pdf). The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a 15-year research effort (2012-2027) to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically ... |
author |
Serbin, Shawn McMahon, Andrew Lewin, Keith Chafe, Oriana Curtis, Bryan Ely, Kim |
author_facet |
Serbin, Shawn McMahon, Andrew Lewin, Keith Chafe, Oriana Curtis, Bryan Ely, Kim |
author_sort |
Serbin, Shawn |
title |
Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
title_short |
Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
title_full |
Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
title_fullStr |
Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
title_full_unstemmed |
Visible to near-infrared spectral reflectance along the NGEE-Arctic tram transect, Utqiagvik (Barrow), Alaska, 2015–2018 |
title_sort |
visible to near-infrared spectral reflectance along the ngee-arctic tram transect, utqiagvik (barrow), alaska, 2015–2018 |
publishDate |
2024 |
url |
http://www.osti.gov/servlets/purl/1183993 https://www.osti.gov/biblio/1183993 https://doi.org/10.5440/1183993 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska |
genre_facet |
Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska |
op_relation |
http://www.osti.gov/servlets/purl/1183993 https://www.osti.gov/biblio/1183993 https://doi.org/10.5440/1183993 doi:10.5440/1183993 |
op_doi |
https://doi.org/10.5440/1183993 |
_version_ |
1795663178188718080 |