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Hydrological Sciences

Zachary Fair

(ASSISTANT RESEARCH SCIENTIST)

Zachary Fair's Contact Card & Information.
Email: zachary.fair@nasa.gov
Org Code: 617
Address:
NASA/GSFC
Mail Code 617
Greenbelt, MD 20771
Employer: UNIV OF MARYLAND COLLEGE PARK

Brief Bio


Dr. Fair received a B.S. degree in Meteorology with a minor in Physics at North Carolina State University in 2015, followed by his M.S. (2018) and Ph.D. (2021) in Climate and Space Science and Engineering at the University of Michigan. His graduate research focused on ICESat-2 laser light penetration into supraglacial lakes and melting snow over the Greenland Ice Sheet. He was awarded the NASA Postdoctoral Program (NPP) fellowship in 2021, where he shifted his research focus to ICESat-2 snow depth retrievals in support of the SnowEx mission. Dr. Fair then joined the Earth Science System Interdisciplinary Center (ESSIC) at University of Maryland under a cooperative agreement with GSFC.


Dr. Fair is actively interested in collaborative opportunities that leverage his expertise in remote sensing, hydrologic and cryospheric science, and lidar applications. He welcomes discussions about both small-scale contributions to ongoing projects and more substantial research partnerships. Potential collaborators can reach him at zachary.fair@nasa.gov or zfair@umd.edu.


Research Interests: Lidar/radar altimetry, spectroscopy, data validation and harmonization, snow, open science tools and workflows, distributed satellite mission concepts.

Research Interests


Evaluating the utility of spaceborne lidar for terrestrial snow monitoring

Earth Science: Snow


Exploring distributed satellite mission concepts to optimize data collection of critical Earth Science variables

Earth Science: Remote Sensing


Using lidar and stereographic photogrammetry to monitor snow for civil engineering applications

Earth Science: Snow


Developing open source workflows to efficiently access and process NASA data in cloud environments

Earth Science: Technology & Missions

Current Projects


SnowPit: Using Snow Science to Develop a Set of Practices for Effective Collaboration in a Cloud Environment

Data Processing


Evaluating the use of airborne lidar and satellite stereo-imagery to inform structural design for snow loads

Snow


Defining measurement requirements for a disaggregated SWE mission concept

Snow

Positions/Employment


Assistant Research Scientist

University of Maryland - College Park, MD

September 2024 - Present

Cooperative agreement with NASA Goddard Space Flight Center.


Postdoctoral Research Fellow (NPP)

Oak Ridge Associated Universities - Greenbelt, MD

September 2021 - September 2024

Funded by the NASA Postdoctoral Program (NPP) to perform snow depths with ICESat-2 in support of the SnowEx mission.


Graduate Research Assistant

University of Michigan - Ann Arbor, MI

September 2016 - May 2021


Post-Undergraduate Intern

NASA Langley Research Center - Hampton, VA

January 2016 - August 2016


Undergraduate Intern

NASA Langley Research Center - Hampton, VA

June 2015 - August 2015

Education


2021: PhD, Climate and Space Science and Engineering, University of Michigan

2018: MS, Climate and Space Science and Engineering, University of Michigan

2015: BS, Meteorology, North Carolina State University

Professional Societies


American Geophysical Union (AGU)

2017 - Present


American Meteorological Society (AMS)

2013 - Present


Institute of Electrical and Electronics Engineers (IEEE)

2020 - Present

Professional Service


2025-present: NASA NGAPS+ Advocacy Committee Member

2025-present: AGU Distributed Sensing Technical Committee Member

2024-present: GSFC 610 Strong Foundations Team Member

2023, 2025: Session Co-chair for Eastern Snow Conference

2023: ICESat-2 Science Lead and Field Participant for the NASA SnowEx Alaska campaign

2022-present: Tutorial developer for the ICESat-2 Hackweek.

2021-present: Contributor to the icepyx software library.

2021-present: Reviewer for scientific journals.

Awards


NASA Postdoctoral Program (NPP) Fellowship, 2021.

NASA Earth and Space Science Fellowship (NESSF), 2017.

Publications


Refereed

2025. "Software to Enable Ocean Discoveries: A Case Study With ICESat‐2 and Argo." Geoscience Data Journal 12 (3): [10.1002/gdj3.291] [Journal Article/Letter]

2025. "Understanding biases in ICESat-2 data due to subsurface scattering using Airborne Topographic Mapper waveform data." The Cryosphere 19 975–995 [https://doi.org/10.5194/tc-19-975-2025] [Journal Article/Letter]

2025. "Review article: Using spaceborne lidar for snow depth retrievals: Recent findings and utility for global hydrologic applications." EGUsphere [10.5194/egusphere-2024-3992] [Journal Article/Letter]

2024. "Characterizing ICESat-2 Snow Depths Over the Boreal Forests and Tundra of Alaska in Support of the SnowEx 2023 Campaign." ESS Open Archive [10.22541/essoar.172927223.38169790/v1] [Journal Article/Letter]

2024. "Quantifying Volumetric Scattering Bias in ICESat‐2 and Operation IceBridge Altimetry Over Greenland Firn and Aged Snow." Earth and Space Science 11 (6): [10.1029/2022ea002479] [Journal Article/Letter]

2023. "icepyx: querying, obtaining, analyzing, and manipulating ICESat-2 datasets." Journal of Open Source Software 8 (84): 4912 [10.21105/joss.04912] [Journal Article/Letter]

2022. "Deriving Snow Depth From ICESat-2 Lidar Multiple Scattering Measurements." Frontiers in Remote Sensing 3 [10.3389/frsen.2022.855159] [Journal Article/Letter]

2020. "ICESat‐2 melt depth retrievals: application to surface melt on Amery Ice Shelf, East Antarctica." Geophysical Research Letters [10.1029/2020gl090550] [Journal Article/Letter]

2020. "Using ICESat-2 and Operation IceBridge altimetry for supraglacial lake depth retrievals." The Cryosphere 14 (11): 4253-4263 [10.5194/tc-14-4253-2020] [Journal Article/Letter]

Talks, Presentations and Posters


Other

Evaluating the use of airborne lidar and satellite stereo-imagery to inform structural design for snow loads

2024

Presented (poster) at the AGU Fall Meeting 2024 in Washington, D.C.


Using spaceborne lidar for snow depth retrievals: Best practices and recommendations for future studies

March 1, 2024

Presented (poster) at AMS Annual Meeting in Baltimore, MD.


A summary of ICESat-2 snow depth acquisitions during the SnowEx 2022/2023 campaign

14, 2023

Presented (oral) at the AGU Fall Meeting in San Francisco, CA.


Assessment of ICESat-2 surface heights over Grand Mesa, CO and Fairbanks, AK in support of the SnowEx mission

13, 2022

Presented (poster) at the AGU Fall Meeting in Chicago, IL.


Quantifying volumetric scattering bias in ICESat-2 altimetry over snow covered surfaces

November 26, 2022

Presented (oral) at the ICESat-2 Science Symposium in Austin, TX.


Quantifying volumetric scattering bias in ICESat-2 altimetry over snow covered surfaces

July 3, 2022

Presented (oral) at the Eastern Snow Conference, virtual attendance.


Quantifying volumetric scattering bias in ICESat-2 and Operation IceBridge altimetry over snow covered surfaces

17, 2021

Presented (poster) at the AGU Fall Meeting in New Orleans, LA.


Sensitivity of snow grain size retrievals to dust content, ice particle asphericity, and solar zenith angle

7, 2020

Presented (poster) at the AGU Fall Meeting, virtual attendance.


Using ICESat-2 and Operation IceBridge altimetry for supraglacial lake depth retrievals

11, 2019

Presented (poster) at the AGU Fall Meeting in San Francisco, CA.


Lake and Lasers: Using ICESat-2 and Operation IceBridge altimetry for supraglacial lake depth retrievals

August 22, 2019

Presented (poster) at the Gordon Research Conference: Radiation and Climate in Lewiston, ME.