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About TC-ATLAS

TC-ATLASTropical Cyclone Analysis Tool for Live and Archived Structure — provides a comprehensive, multi-source platform for exploring tropical cyclone vortex structure. Developed by Dr. Michael Fischer (University of Miami) in collaboration with NOAA's Hurricane Research Division, TC-ATLAS enables researchers to conduct storm-to-storm comparisons and climatological analyses of TC vortex and convective characteristics across all stages of the tropical cyclone lifecycle.

🛰

Multi-Source Integration

Combines airborne Doppler radar, passive microwave and infrared satellite imagery, ERA5 reanalysis, flight-level data, and dropsonde profiles in a unified interactive environment.

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Real-Time Monitoring

Track active NOAA hurricane reconnaissance missions with live tail Doppler radar visualizations, flight-level observations, and environmental diagnostics as they happen.

🌎

Global Coverage

Browse the complete IBTrACS record of tropical cyclones from 1842 to present with satellite imagery, intensity timelines, climatology, and multi-storm comparison tools.

The TC-RADAR Database

The TC-RADAR dataset forms the backbone of TC-ATLAS, providing over 1,500 post-processed airborne Doppler radar analyses of tropical cyclones from 1997 to 2024. All analyses are mapped onto storm-centered grids at 2.0 km horizontal and 0.5 km vertical resolution, spanning 0–18 km in height.

Available Variables

  • Eastward & Northward Velocity
  • Vertical Velocity
  • Radar Reflectivity
  • Wind Speed
  • Tangential & Radial Velocity
  • Relative Vorticity
  • Divergence
  • Vortex Tilt Profiles
  • Radius of Maximum Wind

Reference Frameworks

Real-time Center Fix

Based on operational center position during the mission

2-km Recentered

Using WCM method at 2 km reference height

Vortex Tilt-Relative

Recentered at every vertical level for tilt analysis

Download TC-RADAR

TC-RADAR consists of four netCDF files, grouped by data type and time period. Each file is approximately 10 GB.

Swath Data

1997–2019

~10 GB
Download

Swath Data

2020–2024

~10 GB
Download

Merged Data

1997–2019

~10 GB
Download

Merged Data

2020–2024

~10 GB
Download

📋 Usage Policy

Users are free to download TC-RADAR. However, we request that you notify Dr. Michael Fischer (mike.fischer@miami.edu) and NOAA's Hurricane Research Division radar team lead, Dr. Paul Reasor (paul.reasor@noaa.gov), of the nature of your research project to ensure proper usage. Users should carefully examine data and apply additional QC consistent with their objectives.

📚 Citation

Fischer, M. S., P. D. Reasor, R. F. Rogers, and J. F. Gamache, 2022: An updated tropical cyclone radar database. Mon. Wea. Rev., 150, 2255-2278, https://doi.org/10.1175/MWR-D-21-0223.1.

For vortex tilt analyses, also cite:
Fischer, M. S., P. D. Reasor, J. P. Dunion, and R. F. Rogers, 2024: An Observational Analysis of the Relationship between Tropical Cyclone Vortex Tilt, Precipitation Structure, and Intensity Change. Mon. Wea. Rev., 152, 203-225, https://doi.org/10.1175/MWR-D-23-0089.1.

Full TC-RADAR Documentation (README PDF)

Data Sources & Acknowledgments

TC-ATLAS integrates data from multiple publicly available datasets. We gratefully acknowledge the following data providers.

Passive Microwave Satellite Imagery

TC-PRIMED — Tropical Cyclone PRecipitation, Infrared, Microwave, and Environmental Dataset (NOAA/NESDIS & CSU/CIRA).

Razin, M. N., C. J. Slocum, J. A. Knaff, and P. J. Brown, 2023: Tropical Cyclone PRecipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED). V1.0. NOAA National Centers for Environmental Information. https://doi.org/10.25921/dmy1-0595

Infrared Satellite Imagery

GridSat-B1 — Geostationary IR Channel Brightness Temperature — Gridded Satellite Data (NOAA/NCEI CDR).

MergIR — NCEP/CPC L3 Half-Hourly Merged Global IR (NASA GES DISC).

GOES ABI — Real-time Band 13 (10.3 µm) imagery via the NOAA Open Data Dissemination Program.

Environmental & Best-Track Data

ERA5 — ECMWF Reanalysis v5. Hersbach, H. et al., 2020. Q. J. R. Meteorol. Soc., 146, 1999–2049. doi:10.1002/qj.3803

IBTrACS — International Best Track Archive for Climate Stewardship, v04 (NOAA/NCEI). Knapp, K. R. et al., 2010. Bull. Amer. Meteor. Soc., 91, 363–376.

Airborne Observations

NOAA Aircraft Operations Center — Tail Doppler radar, flight-level, and dropsonde data from NOAA P-3 and G-IV reconnaissance missions, via the Systems Engineering Branch (SEB) archives.

TC-ATLAS is not affiliated with or endorsed by any of the data providers listed above. All datasets are used in accordance with their respective open data policies.

Get in Touch

Questions about TC-ATLAS? Contact the developer.

Dr. Michael Fischer

TC-ATLAS Developer · University of Miami

mike.fischer@miami.edu

Please include details about your research project and intended use of the data.

× Full size radar analysis