1. https://terra-vocabulary.org/ncl
  2. FAIR-Incubator
  3. earthsciencevariables
  4. _c_03021a7d
experimental

Entry: Photochemical Reflectance Index - showing version 4

URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthsciencevariables/c_03021a7d

The Photochemical Reflectance Index (PRI) is a reflectance measurement developed by John Gamon during his tenure as a postdoctorate fellow supervised by Christopher Field at the Carnegie Institution for Science at Stanford University. The PRI is sensitive to changes in carotenoid pigments (e.g. xanthophyll pigments) in live foliage. Carotenoid pigments are indicative of photosynthetic light use efficiency, or the rate of carbon dioxide uptake by foliage per unit energy absorbed. As such, it is used in studies of vegetation productivity and stress. Because the PRI measures plant responses to stress, it can be used to assess general ecosystem health using satellite data or other forms of remote sensing.

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is a Concept | observable property
changed on 13 Nov 2023 10:22:13.295
submitted byViqui Agazzi
accepted on 29 Sep 2022 15:03:10.543

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date accepted 29 Sep 2022 15:03:10.543
date submitted 29 Sep 2022 14:56:16.276
definition
entity Photochemical Reflectance Index
source graph graph

item class Concept | observable property
label Photochemical Reflectance Index
modified 13 Nov 2023 10:22:13.295
notation c_03021a7d
register earthsciencevariables
status status experimental
submitter
account name victoria.agazzi@teledetection.fr
name Viqui Agazzi

type register item
version info 4
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Definition

broader Biosphere
definition The Photochemical Reflectance Index (PRI) is a reflectance measurement developed by John Gamon during his tenure as a postdoctorate fellow supervised by Christopher Field at the Carnegie Institution for Science at Stanford University. The PRI is sensitive to changes in carotenoid pigments (e.g. xanthophyll pigments) in live foliage. Carotenoid pigments are indicative of photosynthetic light use efficiency, or the rate of carbon dioxide uptake by foliage per unit energy absorbed. As such, it is used in studies of vegetation productivity and stress. Because the PRI measures plant responses to stress, it can be used to assess general ecosystem health using satellite data or other forms of remote sensing.
exact match c 213fc1a2
label Photochemical Reflectance Index
pref label Photochemical Reflectance Index
type Concept | observable property