GCMD SIF Keyword Definition

Use this Forum to find information on, or ask a question about, NASA Earth Science data.
Post Reply
ORNL - mthornton
User Services
User Services
Posts: 20
Joined: Tue Jun 23, 2020 2:46 pm America/New_York
Answers: 0
Location: ORNL DAAC
Contact:

GCMD SIF Keyword Definition

by ORNL - mthornton » Wed Feb 02, 2022 11:22 am America/New_York

Hello GCMD, I think there's an opportunity to refine the definition of the SOLAR INDUCED FLUORESCENCE Keyword.
https://gcmd.earthdata.nasa.gov/Keyword ... %20Science
Michele Thornton
ORNL NASA Distributed Active Archive Center
Oak Ridge National Laboratory
thorntonmm@ornl.gov

Tags:

GCMD - tstevens
User Services
User Services
Posts: 136
Joined: Tue Dec 03, 2019 3:26 pm America/New_York
Answers: 0
Been thanked: 2 times

Re: GCMD SIF Keyword Definition

by GCMD - tstevens » Thu Feb 03, 2022 11:25 am America/New_York

@ORNL - mthornton Can you post the recommended change here so we can review and then I can update it in our KMS?

Thank You

ORNL - mthornton
User Services
User Services
Posts: 20
Joined: Tue Jun 23, 2020 2:46 pm America/New_York
Answers: 0
Location: ORNL DAAC
Contact:

Re: GCMD SIF Keyword Definition

by ORNL - mthornton » Thu Feb 03, 2022 4:04 pm America/New_York

Hi. Our DAAC Scientist will reach out with a proposed definition to a broader SIF community and get their input. I will share that consensus as soon as it's available. Thank you.
Michele Thornton
ORNL NASA Distributed Active Archive Center
Oak Ridge National Laboratory
thorntonmm@ornl.gov

ORNL - mthornton
User Services
User Services
Posts: 20
Joined: Tue Jun 23, 2020 2:46 pm America/New_York
Answers: 0
Location: ORNL DAAC
Contact:

Re: GCMD SIF Keyword Definition

by ORNL - mthornton » Thu Feb 24, 2022 9:39 am America/New_York

Hello @GCMD - tstevens ,
Here is an improved SIF definition for your review.

Solar-Induced Chlorophyll Fluorescence (SIF) is an emission of light in the 650–850 nm spectral range from the excited state of the chlorophyll-a pigment after absorption of photosynthetically active radiation (PAR). As this is directly linked to the electron transport chain in oxygenic photosynthesis, SIF is a powerful proxy for photosynthetic activity.

Thank you,
Michele Thornton
ORNL NASA Distributed Active Archive Center
Oak Ridge National Laboratory
thorntonmm@ornl.gov

GCMD - tstevens
User Services
User Services
Posts: 136
Joined: Tue Dec 03, 2019 3:26 pm America/New_York
Answers: 0
Been thanked: 2 times

Re: GCMD SIF Keyword Definition

by GCMD - tstevens » Tue Mar 01, 2022 11:52 am America/New_York

@ORNL - mthornton The definition for this keyword has been updated in KMS. Thanks.

Post Reply