[{"awards": "2535315 Xu, Zhonghua", "bounds_geometry": "POLYGON((5.71 -81.96,14.007000000000001 -81.96,22.304000000000002 -81.96,30.601000000000003 -81.96,38.898 -81.96,47.195 -81.96,55.492000000000004 -81.96,63.78900000000001 -81.96,72.086 -81.96,80.383 -81.96,88.68 -81.96,88.68 -82.24499999999999,88.68 -82.53,88.68 -82.815,88.68 -83.1,88.68 -83.38499999999999,88.68 -83.67,88.68 -83.955,88.68 -84.24,88.68 -84.525,88.68 -84.81,80.38300000000001 -84.81,72.08600000000001 -84.81,63.789 -84.81,55.492000000000004 -84.81,47.19500000000001 -84.81,38.898 -84.81,30.601 -84.81,22.304000000000002 -84.81,14.007000000000005 -84.81,5.71 -84.81,5.71 -84.525,5.71 -84.24,5.71 -83.955,5.71 -83.67,5.71 -83.38499999999999,5.71 -83.1,5.71 -82.815,5.71 -82.53,5.71 -82.24499999999999,5.71 -81.96))", "dataset_titles": "Autonomous Adaptive Low-Power Instrument Platform (AAL-PIP) Ground-based Vector Magnetic", "datasets": [{"dataset_uid": "200591", "doi": "10.48322/ZE7Z-EG10", "keywords": null, "people": null, "repository": "NASA SPDF", "science_program": null, "title": "Autonomous Adaptive Low-Power Instrument Platform (AAL-PIP) Ground-based Vector Magnetic", "url": "https://doi.org/10.48322/ZE7Z-EG10"}], "date_created": "Wed, 09 Sep 2026 00:00:00 GMT", "description": "This project will support a longstanding scientific collaboration of U.S. universities to keep a vital network of sensitive monitoring instruments operating across Antarctica. By maintaining and restoring these ground-based observatories, the project will ensure continuous measurement of Earth\u0027\u0027s magnetic field in the planet\u0027\u0027s southernmost regions. This data is critical for understanding the powerful solar storms that can disrupt satellites, interfere with aviation communications, and threaten power grids. The project will make all its observations available to the global research community, providing an important foundation for better forecasting and preparedness. It will also train the next generation of space weather scientists through hands-on research, and connect the public to the excitement of polar science through planetarium activities and educational outreach. These activities will highlight how fundamental research in Antarctica protects the modern technologies that millions of Americans rely on daily.\r\n\r\nThis project will operate, maintain, and restore the Antarctic PENGUIn (PG) magnetometer array, the only continuously operating network spanning the southern polar cap, cusp, and auroral zones. In coordination with conjugate sites in Greenland, the PG array will contribute to a unique global platform for investigating unresolved questions about interhemispheric asymmetries in high-latitude geospace dynamics during solar maximum. The work will address two core science objectives: 1) characterizing the drivers and spatial structure of magnetic perturbations during extreme space weather events, and 2) quantifying how interplanetary shocks and ultra-low frequency waves couple differently into the northern and southern hemispheres. The methodology will employ a targeted, observation-driven framework. It will analyze conjugate magnetometer data from benchmark events (e.g., the March 17, 2013 storm) and a catalog of 75\u2013100 interplanetary shock events, integrating field-line tracing, upstream solar wind data, and ionospheric measurements to separate intrinsic ionospheric effects from external solar wind forcing. The project will extend a validated 2016 solar-minimum correlation climatology through Solar Cycle 25\u0027\u0027s peak, tracking how hemispheric coupling evolves. The intellectual merit lies in filling the largest remaining gap in global geospace coverage, providing multi-decadal data continuity, and delivering statistically robust results on interhemispheric asymmetry that will reshape fundamental understanding of solar wind-magnetosphere-ionosphere coupling. The project will support early-career researchers, engage with the public via the University of Texas at Arlington Planetarium, and align with the polar and space weather research communities\u2019 priorities.\r\n\r\nThis award reflects NSF\u0027\u0027s statutory mission and has been deemed worthy of support through evaluation using the Foundation\u0027\u0027s intellectual merit and broader impacts review criteria.", "east": 88.68, "geometry": "POINT(47.19500000000001 -83.38499999999999)", "instruments": "EARTH REMOTE SENSING INSTRUMENTS \u003e PASSIVE REMOTE SENSING \u003e MAGNETIC FIELD/ELECTRIC FIELD INSTRUMENTS; EARTH REMOTE SENSING INSTRUMENTS \u003e PASSIVE REMOTE SENSING; SOLAR/SPACE OBSERVING INSTRUMENTS \u003e MAGNETIC FIELD/ELECTRIC FIELD INSTRUMENTS \u003e FLUXGATE MAGNETOMETERS; EARTH REMOTE SENSING INSTRUMENTS \u003e PASSIVE REMOTE SENSING \u003e MAGNETIC FIELD/ELECTRIC FIELD INSTRUMENTS \u003e MAGNETOMETERS", "is_usap_dc": true, "keywords": "FIELD SITES; East Antarctic Plateau; MAGNETIC FIELDS/MAGNETIC CURRENTS; LAND-BASED PLATFORMS", "locations": "East Antarctic Plateau", "north": -81.96, "nsf_funding_programs": "Antarctic Astrophysics and Geospace Sciences", "paleo_time": null, "persons": "Xu, Zhonghua; Sterne, Kevin T", "platforms": "LAND-BASED PLATFORMS; LAND-BASED PLATFORMS \u003e FIELD SITES", "repo": "NASA SPDF", "repositories": "NASA SPDF", "science_programs": null, "south": -84.81, "title": "Investigating Interhemispheric Asymmetries in Solar Wind - Magnetosphere - Ionosphere Coupling Processes in Polar Regions", "uid": "p0010582", "west": 5.71}, {"awards": "1543377 Seefeldt, Mark; 1543325 Landolt, Scott", "bounds_geometry": "POLYGON((166.918 -77.8675,167.2997 -77.8675,167.6814 -77.8675,168.0631 -77.8675,168.4448 -77.8675,168.8265 -77.8675,169.2082 -77.8675,169.5899 -77.8675,169.9716 -77.8675,170.3533 -77.8675,170.735 -77.8675,170.735 -77.98145,170.735 -78.0954,170.735 -78.20935,170.735 -78.3233,170.735 -78.43725,170.735 -78.5512,170.735 -78.66515,170.735 -78.7791,170.735 -78.89305,170.735 -79.007,170.3533 -79.007,169.9716 -79.007,169.5899 -79.007,169.2082 -79.007,168.8265 -79.007,168.4448 -79.007,168.0631 -79.007,167.6814 -79.007,167.2997 -79.007,166.918 -79.007,166.918 -78.89305,166.918 -78.7791,166.918 -78.66515,166.918 -78.5512,166.918 -78.43725,166.918 -78.3233,166.918 -78.20935,166.918 -78.0954,166.918 -77.98145,166.918 -77.8675))", "dataset_titles": "Precipitation Observations for the Northwest Ross Ice Shelf - 2017-12 to 2019-11", "datasets": [{"dataset_uid": "601441", "doi": "10.15784/601441", "keywords": "Accumulation; Antarctica; Glaciers/ice Sheet; Glaciers/Ice Sheet; Meteorology; Precipitation; Ross Ice Shelf; Snow; Snow/ice; Snow/Ice; Weatherstation; Weather Station Data", "people": "Seefeldt, Mark", "repository": "USAP-DC", "science_program": null, "title": "Precipitation Observations for the Northwest Ross Ice Shelf - 2017-12 to 2019-11", "url": "https://www.usap-dc.org/view/dataset/601441"}], "date_created": "Tue, 27 Apr 2021 00:00:00 GMT", "description": "Accurately measuring precipitation in Antarctica is important for purposes such as calculating Antarctica?s mass balance and contribution to global sea level rise, interpreting ice core records, and validating model- and satellite-based precipitation estimates. There is a critical need for reliable, autonomous, long-term measurements of Antarctic precipitation in order to better understand its variability in space in time. Such records over time are essentially absent from the continent, despite their importance. This project will deploy and test instrumentation to measure and record rates of snowfall and blowing snow in Antarctica. Project goals are based on installation of four low-power, autonomous Antarctic precipitation systems (APS) co-located at automatic weather station (AWS) sites in the Ross Island region of Antarctica. The APSs are designed with an integrated sensor approach to provide multiple types of observations of snow accumulation types at the test sites. The APSs are designed to construct an accurate timeline of snow accumulation, and to distinguish the water equivalent of fallen precipitation from surface blowing (lofted) snow, a prime confounding factor. The standard suite of instruments to be deployed includes: precipitation gauge with double Alter windshield, laser disdrometer, laser snow height sensor, optical precipitation detector, anemometer at gauge height, and a visible /infrared webcam. These instruments have previously been shown to work well in cold regions applications.", "east": 170.735, "geometry": "POINT(168.8265 -78.43725)", "instruments": null, "is_usap_dc": true, "keywords": "USAP-DC; AMD; Amd/Us; USA/NSF; SNOW; Wind Data; WEATHER STATIONS; Ross Ice Shelf", "locations": "Ross Ice Shelf", "north": -77.8675, "nsf_funding_programs": "Antarctic Ocean and Atmospheric Sciences; Antarctic Ocean and Atmospheric Sciences", "paleo_time": null, "persons": "Seefeldt, Mark; Landolt, Scott", "platforms": "LAND-BASED PLATFORMS \u003e PERMANENT LAND SITES \u003e WEATHER STATIONS", "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -79.007, "title": "Collaborative Research: Implementing Low-power, Autonomous Observing Systems to Improve the Measurement and Understanding of Antarctic Precipitation", "uid": "p0010173", "west": 166.918}]

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Investigating Interhemispheric Asymmetries in Solar Wind - Magnetosphere - Ionosphere Coupling Processes in Polar Regions

2535315

2026-09-09

Xu, Zhonghua; Sterne, Kevin T

Autonomous Adaptive Low-Power Instrument Platform (AAL-PIP) Ground-based Vector Magnetic

NASA SPDF

This project will support a longstanding scientific collaboration of U.S. universities to keep a vital network of sensitive monitoring instruments operating across Antarctica. By maintaining and restoring these ground-based observatories, the project will ensure continuous measurement of Earth''s magnetic field in the planet''s southernmost regions. This data is critical for understanding the powerful solar storms that can disrupt satellites, interfere with aviation communications, and threaten power grids. The project will make all its observations available to the global research community, providing an important foundation for better forecasting and preparedness. It will also train the next generation of space weather scientists through hands-on research, and connect the public to the excitement of polar science through planetarium activities and educational outreach. These activities will highlight how fundamental research in Antarctica protects the modern technologies that millions of Americans rely on daily. This project will operate, maintain, and restore the Antarctic PENGUIn (PG) magnetometer array, the only continuously operating network spanning the southern polar cap, cusp, and auroral zones. In coordination with conjugate sites in Greenland, the PG array will contribute to a unique global platform for investigating unresolved questions about interhemispheric asymmetries in high-latitude geospace dynamics during solar maximum. The work will address two core science objectives: 1) characterizing the drivers and spatial structure of magnetic perturbations during extreme space weather events, and 2) quantifying how interplanetary shocks and ultra-low frequency waves couple differently into the northern and southern hemispheres. The methodology will employ a targeted, observation-driven framework. It will analyze conjugate magnetometer data from benchmark events (e.g., the March 17, 2013 storm) and a catalog of 75–100 interplanetary shock events, integrating field-line tracing, upstream solar wind data, and ionospheric measurements to separate intrinsic ionospheric effects from external solar wind forcing. The project will extend a validated 2016 solar-minimum correlation climatology through Solar Cycle 25''s peak, tracking how hemispheric coupling evolves. The intellectual merit lies in filling the largest remaining gap in global geospace coverage, providing multi-decadal data continuity, and delivering statistically robust results on interhemispheric asymmetry that will reshape fundamental understanding of solar wind-magnetosphere-ionosphere coupling. The project will support early-career researchers, engage with the public via the University of Texas at Arlington Planetarium, and align with the polar and space weather research communities’ priorities. This award reflects NSF''s statutory mission and has been deemed worthy of support through evaluation using the Foundation''s intellectual merit and broader impacts review criteria.

Collaborative Research: Implementing Low-power, Autonomous Observing Systems to Improve the Measurement and Understanding of Antarctic Precipitation

1543377
1543325

2021-04-27

Seefeldt, Mark; Landolt, Scott

Precipitation Observations for the Northwest Ross Ice Shelf - 2017-12 to 2019-11

USAP-DC