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Description

The Turbulent Air Motion Measurement System (TAMMS) IMPACTS dataset consists of wind speed, wind direction, and cross-wind speed measurements from the TAMMS instrument onboard the NASA P-3 aircraft 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 (2020-2023). The campaign 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 advance prediction capabilities significantly. The files are available from January 18, 2020, through February 28, 2023, in ASCII-ict format.

Product Summary

Platforms
NASA P-3
Instruments
TAMMS
Spatial Extent

N: 48.244 S: 33.261 E: -64.978 W: -95.204

Location
UNITED STATES OF AMERICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2020-01-18 to 2023-02-28
Data Partner
Global Hydrometeorology Resource Center, Marshall Space Flight Center, NASA (NASA/MSFC/GHRC)
Concept ID
C1995869822-GHRC_DAAC
Data State
COMPLETE
Number of Files/Granules
33
Processing Level
2
Published
Updated
Science Keywords
Flight Level Winds ,
Wind Speed ,
Wind Direction

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

Thornhill, K. L. (2025). Turbulent Air Motion Measurement System (TAMMS) IMPACTS [Data set]. NASA Global Hydrometeorology Resource Center Distributed Active Archive Center. https://doi.org/10.5067/IMPACTS/TAMMS/DATA101 Date Accessed: 2026-05-14

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
In-cloud characteristics observed in northeastern and midwestern US non-orographic winter storms with implications for ice particle mass growth and residence time Allen, Luke R., Yuter, Sandra E., Crowe, Declan M., Miller, Matthew A., Thornhill, K. Lee Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Flight Level Winds, Wind Speed, Wind Direction, Relative Humidity, Potential Temperature, Atmospheric Pressure Measurements, Atmospheric Temperature Indices, Airspeed/Ground Speed, Attitude Characteristics, Atmospheric Precipitation Indices, Cloud Dynamics, Radar Reflectivity, Doppler Velocity, Radar Reflectivity, Doppler Velocity, SPECTRUM WIDTH
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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