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Description

This data set contains a 12 km resolution, simulated reanalysis of aerosol transport, chemistry, and deposition over the High Mountain Asia (HMA) region for 1 January 2003 through 31 August 2019.

Two-dimensional surface data are provided at one hour intervals. Three-dimensional atmospheric data are provided at three-hour intervals for 35 sigma levels extending from the surface to 50 hPa.

Also known as the Model for Atmospheric Transport and Chemistry in Asia (MATCHA), the data comprise a wide range of variables intended to help assess the impacts of aerosols on the cryosphere in the HMA region, including: concentrations of black/brown carbon and other light absorbing particles (LAPs), broken out by source region; longwave/shortwave heating rates due to LAPs; wet/dry deposition of LAPs; precipitation and hydrological data; and meteorological state variables.

The simulation was generated using a fully coupled, regional chemistry-climate model (WRF-Chem-CLM-SNICAR), constrained by aerosol optical depth (AOD) and carbon monoxide (CO) satellite observations acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) and Measurements Of Pollution In The Troposphere (MOPITT) instruments, respectively.

Version Description

Initial release

Product Summary

Platforms
Aqua ,
MODELS ,
Terra
Instruments
MODIS ,
NOT APPLICABLE ,
MOPITT
Spatial Extent

N: 57.767 S: 4.873 E: 138.953 W: 44.647

Spatial Resolution
12 Kilometers x 12 Kilometers
Location
AFGHANISTAN ,
KYRGYZSTAN ,
PAKISTAN ,
TAJIKISTAN
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2003-01-01 to 2019-08-31
Temporal Resolution
Varies
Concept ID
C3266794162-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
194782
Processing Level
4
Published
Science Keywords
Aerosol Concentration ,
Black Carbon ,
Deposition ,
Longwave Radiation ,
Shortwave Radiation

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

Kumar, R., He, C., Roychoudhury, C., Cheng, W., & Mizukami, N. (2024). High Mountain Asia 12 km Modeled Estimates of Aerosol Transport, Chemistry, and Deposition Reanalysis, 2003-2019, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/CG4OT8DJX2Z7 Date Accessed: 2026-04-30

Documents

Filters
Title Year Author Topic
Diagnosing aerosolmeteorological interactions on snow within Earth system models: a proof-of-concept study over High Mountain Asia Roychoudhury, Chayan, He, Cenlin, Kumar, Rajesh, Arellano Jr., Avelino F. Reflectance, Dust/Ash/Smoke, Carbonaceous Aerosols, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Dimethyl Sulfide, Aerosol Particle Properties, Particulate Matter, Aerosols, Surface Pressure, Pressure Thickness, Relative Humidity, Sea Salt, Black Carbon, Air Mass/Density, Aerosol Concentration, Deposition, Longwave Radiation, Shortwave Radiation, Atmospheric Radiation, Radiative Flux, Radiative Forcing, Surface Radiative Properties, Albedo, Emissivity, Cloud Properties, Cloud Fraction, Cloud Optical Depth/Thickness, Skin Temperature, Skin Temperature, Sea Surface Skin Temperature, Land Surface Temperature, Snow Cover, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 1.0), PARTICULATE MATTER (PM 10), Precipitation, Precipitation Amount, Precipitation Rate, Snow, Rain, Atmospheric Ozone, Sea Level Pressure, U/V Wind Components, U/V Wind Components, Potential Vorticity, Vertical Wind Velocity/Speed, Vertical Profiles, Upper Air Temperature, Air Temperature, Specific Humidity, Atmospheric Water Vapor, Cloud Liquid Water/Ice, Altitude, Geopotential Height, Ozone Profiles, Surface Temperature, Dew Point Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, Upper Level Winds, Atmospheric Pressure, Cloud Top Pressure, Sea Level Pressure, Total Precipitable Water, Oxygen Compounds, Boundary Layer Winds, Albedo, Snow Depth, Snow Water Equivalent, Heat Flux, Water Vapor, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction, Soil Heat Budget, Soil Heat Budget, Soil Temperature, Soil Temperature, Soil Infiltration, Soil Infiltration, Soil Moisture/Water Content, Surface Soil Moisture, Root Zone Soil Moisture, Soil Moisture/Water Content, Surface Water, Runoff Rate, Average Flow, Average Flow, Snow Depth, Snow Melt, Snow/Ice Temperature, Leaf Area Index (LAI), Leaf Area Index (LAI)
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