ORAU
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
ORAU, Pasadena, California, United States, 91122
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
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Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
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ORAU Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
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Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
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ORAU Get AI-powered advice on this job and more exclusive features. Organization
National Aeronautics and Space Administration (NASA) Organization
National Aeronautics and Space Administration (NASA)
Reference Code
0171-NPP-NOV25-JPL-EarthSci
How To Apply
All applications must be submitted in Zintellect
Please visit the NASA Postdoctoral Program website for application instructions and requirements: How to Apply | NASA Postdoctoral Program (orau.org)
A complete application to the NASA Postdoctoral Program includes:
Research proposal Three letters of recommendation Official doctoral transcript documents
Application Deadline
11/1/2025 6:00:59 PM Eastern Time Zone
Description
About the
NASA Postdoctoral Program
The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology.
Description:
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis and Carbon Uptake in Climate Sensitive Regions, JPL is seeking a postdoctoral fellow, mentored by Dr. Nicholas Parazoo, to investigate coupled carbon-water cycle interactions and bioclimatic controls on ecosystem productivity. The global terrestrial carbon sink, representing land uptake of atmospheric CO2 by net ecosystem exchange (NEE), offsets one-third of the world's fossil fuel emissions. The Grand Challenge of Carbon Cycle Science is to understand how NEE will evolve under future climate change and how this will impact atmospheric CO2 concentrations. Gross uptake of carbon by photosynthesis (""gross primary production"" or GPP) is a primary driver of the carbon cycle and a major point of interaction with climate change at interannual time scales. Linking interannual variability of atmospheric CO2 to GPP can provide insight about the NEE response to climate change. Climate change is expected to cause warmer springs and drier summers, which can increase GPP in the spring, but reduce peak growing season GPP. The CO2 flux response to seasonal warming and drying is uncertain, but may increasingly depend on availability of liquid water in soils. Our ability to quantify and predict climate feedbacks to C-water cycle interactions requires methods for estimating net and component CO2 flux response to seasonal warming, thawing, and drying, and determining the dependence on climate, phenology, and biome diversity at landscape, ecosystem, and regional scales. This requires focus on systematic, continental-scale sampling over multiple years and from multiple in situ, airborne, and remote sensing monitoring systems. One of the most pressing questions is how increased uptake due to earlier spring onset might offset summer drying induced CO2 losses, and how these processes are coupled through C/water cycle interactions. The NPP fellow will have an opportunity to work with Dr. Parazoo and other scientists at JPL in the Earth Science Division and the Carbon Cycle and Ecosystems group (Drs. Charles Miller, Dave Schimel, Darren Drewry, Troy Magney), as well as Caltech (Christian Frankenberg, Philipp Kohler), to exploit an expanding set of multi-scale satellite (SCIAMACHY, GOSAT, GOME-2, OCO-2, TROPOMI), airborne (CARVE, ABoVE), and field (FluoNet, Ameriflux, PCN) vegetation, carbon and water cycle observations with state-of-the-art land and atmosphere models to investigate the response and feedback of seasonal phenology, gross and net CO2 exchange, and atmospheric CO2 to climate variability. Preferred qualifications: PhD in Ecology, Plant physiology, Biogeochemistry, Earth system science, or related field o Graduate level training in ecology and plant physiology; Graduate level training in statistics; Experience using tower, airborne, and spaceborne remote sensing datasets; Experience conducting ecological field work in remote locations. Experience with numerical modeling of land and atmospheric processes. Please contact Dr. Parazoo (818-354-2973, Nicholas.c.parazoo@jpl.nasa.gov) for more information
Location:
Jet Propulsion Laboratory
Pasadena, California
Field of Science: Earth Science
Advisors:
Nicholas Parazoo
nicholas.c.parazoo@jpl.nasa.gov
9706727410
Applications with citizens from Designated Countries will not be accepted at this time, unless they are Legal Permanent Residents of the United States.
A complete list of Designated Countries can be found at: https://www.nasa.gov/oiir/export-control.
Eligibility is currently open to:
U.S. Citizens; U.S. Lawful Permanent Residents (LPR); Foreign Nationals eligible for an Exchange Visitor J-1 visa status; and, Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms in pending status
Questions about this opportunity?
Please email npp@orau.org
Point of Contact
Mikeala
Eligibility Requirements
Degree: Doctoral Degree.
Seniority level
Seniority level Internship Employment type
Employment type Full-time Job function
Job function Other Industries Government Administration Referrals increase your chances of interviewing at ORAU by 2x Sign in to set job alerts for “Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis” roles.
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
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Join to apply for the
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
role at
ORAU Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
1 month ago Be among the first 25 applicants Join to apply for the
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis
role at
ORAU Get AI-powered advice on this job and more exclusive features. Organization
National Aeronautics and Space Administration (NASA) Organization
National Aeronautics and Space Administration (NASA)
Reference Code
0171-NPP-NOV25-JPL-EarthSci
How To Apply
All applications must be submitted in Zintellect
Please visit the NASA Postdoctoral Program website for application instructions and requirements: How to Apply | NASA Postdoctoral Program (orau.org)
A complete application to the NASA Postdoctoral Program includes:
Research proposal Three letters of recommendation Official doctoral transcript documents
Application Deadline
11/1/2025 6:00:59 PM Eastern Time Zone
Description
About the
NASA Postdoctoral Program
The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology.
Description:
Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis and Carbon Uptake in Climate Sensitive Regions, JPL is seeking a postdoctoral fellow, mentored by Dr. Nicholas Parazoo, to investigate coupled carbon-water cycle interactions and bioclimatic controls on ecosystem productivity. The global terrestrial carbon sink, representing land uptake of atmospheric CO2 by net ecosystem exchange (NEE), offsets one-third of the world's fossil fuel emissions. The Grand Challenge of Carbon Cycle Science is to understand how NEE will evolve under future climate change and how this will impact atmospheric CO2 concentrations. Gross uptake of carbon by photosynthesis (""gross primary production"" or GPP) is a primary driver of the carbon cycle and a major point of interaction with climate change at interannual time scales. Linking interannual variability of atmospheric CO2 to GPP can provide insight about the NEE response to climate change. Climate change is expected to cause warmer springs and drier summers, which can increase GPP in the spring, but reduce peak growing season GPP. The CO2 flux response to seasonal warming and drying is uncertain, but may increasingly depend on availability of liquid water in soils. Our ability to quantify and predict climate feedbacks to C-water cycle interactions requires methods for estimating net and component CO2 flux response to seasonal warming, thawing, and drying, and determining the dependence on climate, phenology, and biome diversity at landscape, ecosystem, and regional scales. This requires focus on systematic, continental-scale sampling over multiple years and from multiple in situ, airborne, and remote sensing monitoring systems. One of the most pressing questions is how increased uptake due to earlier spring onset might offset summer drying induced CO2 losses, and how these processes are coupled through C/water cycle interactions. The NPP fellow will have an opportunity to work with Dr. Parazoo and other scientists at JPL in the Earth Science Division and the Carbon Cycle and Ecosystems group (Drs. Charles Miller, Dave Schimel, Darren Drewry, Troy Magney), as well as Caltech (Christian Frankenberg, Philipp Kohler), to exploit an expanding set of multi-scale satellite (SCIAMACHY, GOSAT, GOME-2, OCO-2, TROPOMI), airborne (CARVE, ABoVE), and field (FluoNet, Ameriflux, PCN) vegetation, carbon and water cycle observations with state-of-the-art land and atmosphere models to investigate the response and feedback of seasonal phenology, gross and net CO2 exchange, and atmospheric CO2 to climate variability. Preferred qualifications: PhD in Ecology, Plant physiology, Biogeochemistry, Earth system science, or related field o Graduate level training in ecology and plant physiology; Graduate level training in statistics; Experience using tower, airborne, and spaceborne remote sensing datasets; Experience conducting ecological field work in remote locations. Experience with numerical modeling of land and atmospheric processes. Please contact Dr. Parazoo (818-354-2973, Nicholas.c.parazoo@jpl.nasa.gov) for more information
Location:
Jet Propulsion Laboratory
Pasadena, California
Field of Science: Earth Science
Advisors:
Nicholas Parazoo
nicholas.c.parazoo@jpl.nasa.gov
9706727410
Applications with citizens from Designated Countries will not be accepted at this time, unless they are Legal Permanent Residents of the United States.
A complete list of Designated Countries can be found at: https://www.nasa.gov/oiir/export-control.
Eligibility is currently open to:
U.S. Citizens; U.S. Lawful Permanent Residents (LPR); Foreign Nationals eligible for an Exchange Visitor J-1 visa status; and, Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms in pending status
Questions about this opportunity?
Please email npp@orau.org
Point of Contact
Mikeala
Eligibility Requirements
Degree: Doctoral Degree.
Seniority level
Seniority level Internship Employment type
Employment type Full-time Job function
Job function Other Industries Government Administration Referrals increase your chances of interviewing at ORAU by 2x Sign in to set job alerts for “Assessing Trends and Variability in Terrestrial Ecosystem Photosynthesis” roles.
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr