TROPICS03 L2B Deep Multispectral INtensity (DMIN) of Tropical cyclones estimator Algorithm V1.0

The "Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats" (TROPICS) mission has a goal of providing nearly all-weather observations of three-dimensional temperature and humidity, as well as cloud ice and precipitation horizontal structure, at high temporal resolution to conduct high-value science investigations of tropical cyclones. The mission comprises a constellation of five identical Space Vehicles (SVs) conforming to the 3U form factor and hosting a passive microwave spectrometer payload.

Each SV hosts an identical high-performance spectrometer named the TROPICS Millimeter-wave Sounder (TMS) that will provide temperature profiles using seven channels near the 118.75-GHz oxygen absorption line, water vapor profiles using three channels near the 183-GHz water vapor absorption line, imagery in a single channel near 90 GHz for precipitation measurements (when combined with higher resolution water vapor channels), and a single channel near 205 GHz that is more sensitive to cloud-sized ice particles.

The Deep Multispectral INtensity of TCs estimator with 183 GHz brightness temperatures (D-MINT183), developed at the University of Wisconsin/CIMSS, estimates two primary TC variables: Minimum Sea Level Pressure (MSLP) and Maximum Sustained Winds (MSW). D-MINT183 is a convolutional neural network (CNN) with no inherent physical understanding of TC intensity relationships, which is an approach that differs from the other two TROPICS TC Intensity algorithm (i.e., TCIE and HISA). D-MINT183 is trained using combinations of 183±1 and 183±3 GHz imagery from SSMIS, ATMS, MHS, and AMSU-B, as well as 15 hours of infrared imagery (in 3-h increments) and scalar predictors. TROPICS has 184.41 GHz and 186.51 GHz imagery, which is used as a proxy for the 183±1 GHz and 183±3 GHz imagery. D-MINT183 produces a probabilistic distribution of intensities for a given TC for 15 different quantiles. The D-MINT183 single-value intensity is the average of the 30th to 70th quantiles, as that was found to be more accurate than the 50th quantile.

Data and Resources

Additional Info

Field Value
Maintainer Kristan Morgan
Last Updated March 27, 2025, 14:05 (UTC)
Created March 27, 2025, 14:05 (UTC)
accessLevel public
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citation William J. Blackwell, MIT Lincoln Laboratory. 2025-03-05. TROPICS03DMINL2B. Version 1.0. TROPICS03 L2B Deep Multispectral Intensity (DMIN) of Tropical cyclones estimator V1.0. Greenbelt, MD. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/YMMN1SBTXYIS. https://disc.gsfc.nasa.gov/datacollection/TROPICS03DMINL2B_1.0.html. Digital Science Data.
creator William J. Blackwell, MIT Lincoln Laboratory
data-presentation-form Digital Science Data
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harvest_source_title DNG Legacy Data
identifier C3435394065-GES_DISC
issued 2021-07-19
landingPage https://doi.org/10.5067/YMMN1SBTXYIS
language {en-US}
metadata_type geospatial
modified 2021-07-19
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
references {https://doi.org/10.1002/qj.3290}
release-place Greenbelt, MD
resource-type Dataset
series-name TROPICS03DMINL2B
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