ORAU
Modeling path delay in the neutral atmosphere
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Modeling path delay in the neutral atmosphere
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ORAU Modeling path delay in the neutral atmosphere
1 month ago Be among the first 25 applicants Join to apply for the
Modeling path delay in the neutral atmosphere
role at
ORAU Organization
National Aeronautics and Space Administration (NASA) Organization
National Aeronautics and Space Administration (NASA)
Reference Code
0203-NPP-NOV25-GSFC-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:
This opportunity is closed to applicants who are Senior Fellows (5-years or more past PhD).
The accuracy of space geodesy is limited by mis-modeling path delay in the neutral atmosphere. The focus of the research is to improve path delay models for analysis of Space Geodesy data including data from Very Long Baseline Interferometry (VLBI), Global Navigation Satellite Systems (GNSS), and Doppler Orbitography Radiopositioning Integrated by Satellite (DORIS) by, (1) investigating the use of global numerical weather models, regional weather models, results of InSAR data analysis, water vapor radiometers for determination of errors in path delay modeling; (2) understanding the origin of these errors; and (3) working to develop methodologies for mitigation of these wet-delay errors. In addition to deterministic modeling the path delay in the neutral atmosphere, this research also explores the applicability of the use of big datasets for evaluation of stochastic properties of the atmosphere for given geodetic stations over a defined time interval by utilizing advances of turbulence theory.
Location:
Goddard Space Flight Center
Greenbelt, Maryland
Field of Science: Earth Science
Advisors:
Leonid Petrov
leonid.petrov@nasa.gov
Terence Sabaka
Terence.J.Sabaka@nasa.gov
301-614-6493
Frank Lemoine
frank.g.lemoine@nasa.gov
301-614-6109
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 Get notified about new Modeling path delay in the neutral atmosphere jobs in
Greenbelt, MD . 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
Join to apply for the
Modeling path delay in the neutral atmosphere
role at
ORAU Modeling path delay in the neutral atmosphere
1 month ago Be among the first 25 applicants Join to apply for the
Modeling path delay in the neutral atmosphere
role at
ORAU Organization
National Aeronautics and Space Administration (NASA) Organization
National Aeronautics and Space Administration (NASA)
Reference Code
0203-NPP-NOV25-GSFC-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:
This opportunity is closed to applicants who are Senior Fellows (5-years or more past PhD).
The accuracy of space geodesy is limited by mis-modeling path delay in the neutral atmosphere. The focus of the research is to improve path delay models for analysis of Space Geodesy data including data from Very Long Baseline Interferometry (VLBI), Global Navigation Satellite Systems (GNSS), and Doppler Orbitography Radiopositioning Integrated by Satellite (DORIS) by, (1) investigating the use of global numerical weather models, regional weather models, results of InSAR data analysis, water vapor radiometers for determination of errors in path delay modeling; (2) understanding the origin of these errors; and (3) working to develop methodologies for mitigation of these wet-delay errors. In addition to deterministic modeling the path delay in the neutral atmosphere, this research also explores the applicability of the use of big datasets for evaluation of stochastic properties of the atmosphere for given geodetic stations over a defined time interval by utilizing advances of turbulence theory.
Location:
Goddard Space Flight Center
Greenbelt, Maryland
Field of Science: Earth Science
Advisors:
Leonid Petrov
leonid.petrov@nasa.gov
Terence Sabaka
Terence.J.Sabaka@nasa.gov
301-614-6493
Frank Lemoine
frank.g.lemoine@nasa.gov
301-614-6109
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 Get notified about new Modeling path delay in the neutral atmosphere jobs in
Greenbelt, MD . 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