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Description

The Automated Surface Observing Systems (ASOS) IMPACTS dataset consists of a variety of ground-based observations during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign. IMPACTS was a three-year sequence of winter season deployments conducted to study snowstorms over the U.S. Atlantic coast. IMPACTS aimed to (1) Provide observations critical to understanding the mechanisms of snowband formation, organization, and evolution; (2) Examine how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands; and (3) Improve snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. This ASOS dataset consists of 176 stations within the IMPACTS domain. Each station provides observations of surface temperature, dew point, precipitation, wind direction, wind speed, wind gust, sea level pressure, and the observed weather code. The ASOS data are available from December 29, 2019, through March 1, 2023, in netCDF-4 format.

Product Summary

Platforms
GROUND STATIONS
Instruments
ANEMOMETERS ,
BAROMETERS ,
RAIN GAUGES ,
THERMOMETERS ,
Visibility Sensor
Spatial Extent

N: 47.467 S: 36.571 E: -67.791 W: -89.694

Location
UNITED STATES OF AMERICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2019-12-29 to 2023-03-01
Data Partner
Global Hydrometeorology Resource Center, Marshall Space Flight Center, NASA (NASA/MSFC/GHRC)
Concept ID
C1995871063-GHRC_DAAC
Data State
COMPLETE
Number of Files/Granules
32134
Processing Level
1B
Published
Updated
Science Keywords
Atmospheric Temperature Indices ,
Sea Level Pressure ,
Dew Point Temperature ,
Local Winds ,
Atmospheric Precipitation Indices ,
Visibility

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Brodzik, S. (2025). Automated Surface Observing System (ASOS) IMPACTS [Data set]. NASA Global Hydrometeorology Resource Center Distributed Active Archive Center. https://doi.org/10.5067/IMPACTS/ASOS/DATA101 Date Accessed: 2026-05-23

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Ambient and intrinsic dependencies of evolving ice-phase particles within a decaying winter storm during IMPACTS DeLaFrance, Andrew, McMurdie, Lynn A., Rowe, Angela K., Heymsfield, Andrew J. Atmospheric Pressure Measurements, Wind Speed, Wind Direction, Dew Point Temperature, Geopotential Height, Water Vapor Mixing Ratio Profiles, Relative Humidity, Potential Temperature, Particle Size Distribution, Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Flight Level Winds, Reflectance, Cloud Dynamics, Doppler Velocity, SPECTRUM WIDTH, Radar Cross-Section, Radar Reflectivity, Doppler Velocity, SPECTRUM WIDTH, Atmospheric Temperature Indices, Airspeed/Ground Speed, Attitude Characteristics, Sea Level Pressure, Local Winds, Atmospheric Precipitation Indices, Visibility
Simulated particle evolution within a winter storm: contributions of DeLaFrance, Andrew, McMurdie, Lynn A., Rowe, Angela K., Heymsfield, Andrew J. Atmospheric Pressure Measurements, Wind Speed, Wind Direction, Dew Point Temperature, Geopotential Height, Water Vapor Mixing Ratio Profiles, Relative Humidity, Potential Temperature, Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Flight Level Winds, Cloud Dynamics, Doppler Velocity, SPECTRUM WIDTH, Radar Cross-Section, Radar Reflectivity, Doppler Velocity, SPECTRUM WIDTH, Atmospheric Temperature Indices, Sea Level Pressure, Local Winds, Atmospheric Precipitation Indices, Visibility, Visible Radiance, Infrared Radiance
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