Conifer Needle Chlorophyll Fluorescence, Niwot Ridge, Colorado, USA, 2017-2018
This dataset provides chlorophyll fluorescence measurements made on pine and spruce needle tissues at the Niwot Ridge AmeriFlux Core site (US-NR1) near Nederland, Colorado, USA, during the summers of 2017 and 2018. Two types of measurements were made using pulse-amplitude-modulation (PAM) fluorometry: the photosystem II (PSII) operating efficiency in the light (Fq'/Fm' at variable light levels), and the maximum quantum efficiency of PSII photochemistry (Fv/Fm) on dark-acclimated tissues. Chlorophyll fluorescence measurements were made to determine seasonality of photosynthetic performance at the needle level.
Resources
6 resources available
-
Original Metadata
ISO -
Resource 2
JPEG -
Resource 3
ZIP -
Resource 4
PDF -
Resource 5
HTML -
Resource 6
BIN
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "Earthdata Forum", "@type": "vcard:Contact", "hasEmail": "mailto:earthdata-support@nasa.gov" } |
| description | This dataset provides chlorophyll fluorescence measurements made on pine and spruce needle tissues at the Niwot Ridge AmeriFlux Core site (US-NR1) near Nederland, Colorado, USA, during the summers of 2017 and 2018. Two types of measurements were made using pulse-amplitude-modulation (PAM) fluorometry: the photosystem II (PSII) operating efficiency in the light (Fq'/Fm' at variable light levels), and the maximum quantum efficiency of PSII photochemistry (Fv/Fm) on dark-acclimated tissues. Chlorophyll fluorescence measurements were made to determine seasonality of photosynthetic performance at the needle level. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "ISO", "mediaType": "text/xml", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2389021650-ORNL_CLOUD.iso19115" }, { "@type": "dcat:Distribution", "format": "JPEG", "mediaType": "image/jpeg", "downloadURL": "https://daac.ornl.gov/CMS/guides/Niwot_Ridge_CNPAM_Fluorescence_fig1.jpg" }, { "@type": "dcat:Distribution", "format": "ZIP", "mediaType": "application/zip", "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/protected/bundle/Niwot_Ridge_CNPAM_Fluorescence_1722.zip" }, { "@type": "dcat:Distribution", "format": "PDF", "mediaType": "application/pdf", "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/cms/Niwot_Ridge_CNPAM_Fluorescence/comp/Niwot_Ridge_CNPAM_Fluorescence.pdf" }, { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://doi.org/10.3334/ORNLDAAC/1722" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2389021650-ORNL_CLOUD" } ] |
| identifier | 10.3334/ORNLDAAC/1722 |
| keyword |
[ "earth-science-ecological-dynamics-biosphere-ecosystem-functions", "earth-science-ecosystems-biosphere-terrestrial-ecosystems", "earth-science-vegetation-biosphere-chlorophyll", "earth-science-vegetation-biosphere-leaf-characteristics" ] |
| license | https://www.usa.gov/government-works |
| modified | 2026-06-22 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "ORNL_DAAC", "@type": "org:Organization" } |
| spatial |
"["CARTESIAN", [{"WestBoundingCoordinate": -105.55, "NorthBoundingCoordinate": 40.03, "EastBoundingCoordinate": -105.55, "SouthBoundingCoordinate": 40.03}]]"
|
| temporal | 2017-07-10/2018-06-11 |
| theme |
[ "Earth Science" ] |
| title | Conifer Needle Chlorophyll Fluorescence, Niwot Ridge, Colorado, USA, 2017-2018 |
