Development of High-Resolution Dynamic Dust Source Function -A Case Study with a Strong Dust Storm in a Regional Model

Kim, Dongchul; Chin, Mian; Kemp, Eric M.; Tao, Zhining; Peters-Lidard, Christa D.; Ginoux, Paul

doi:10.1016/j.atmosenv.2017.03.045

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Development of High-Resolution Dynamic Dust Source Function -A Case Study with a Strong Dust Storm in a Regional Model

2017
By Kim, Dongchul ; Chin, Mian ; Kemp, Eric M. ; ...
Source: Atmos Environ (1994) 2017 Jun; 159: 11–25.

[PDF-4.34 MB]

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Alternative Title:

Development of high-resolution dynamic dust source function - A case study with a strong dust storm in a regional model
Journal Title:

Atmospheric Environment
Personal Author:

Kim, Dongchul ; Chin, Mian ; Kemp, Eric M. ; Tao, Zhining ; Peters-Lidard, Christa D. ; ... More +

Kim, Dongchul ; Chin, Mian ; Kemp, Eric M. ; Tao, Zhining ; Peters-Lidard, Christa D. ; Ginoux, Paul Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) Less -
Description:

A high-resolution dynamic dust source has been developed in the NASA Unified-Weather Research and Forecasting (NU-WRF) model to improve the existing coarse static dust source. In the new dust source map, topographic depression is in 1-km resolution and surface bareness is derived using the Normalized Difference Vegetation Index (NDVI) data from Moderate Resolution Imaging Spectroradiometer (MODIS). The new dust source better resolves the complex topographic distribution over the Western United States where its magnitude is higher than the existing, coarser resolution static source. A case study is conducted with an extreme dust storm that occurred in Phoenix, Arizona in 02-03 UTC July 6, 2011. The NU-WRF model with the new high-resolution dynamic dust source is able to successfully capture the dust storm, which was not achieved with the old source identification. However the case study also reveals several challenges in reproducing the time evolution of the short-lived, extreme dust storm events. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords:

[+]

Aerosols Air Quality Atmospheric Science Convective Clouds Desert Ecology Dust Dust Storms Dynamic Climatology Ecological Systems Theory Ecology Environmental Sciences Land Use Meteorology Mineral Dusts Plants Source Separation (Signal Processing) Surfaces, Models Of Transportation
Source:

Atmos Environ (1994) 2017 Jun; 159: 11–25.
DOI:

https://doi.org/10.1016/j.atmosenv.2017.03.045
Pubmed Central ID:

PMC5887124
Document Type:

Journal Article
Place as Subject:

Arizona
Rights Information:

Other
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PMC
Main Document Checksum:

[+]

urn:sha256:49d701251b0decf14364911ac29861c96f0daf0fc16343e3ca5ea6cbf63d3ab6
Download URL:

https://repository.library.noaa.gov/view/noaa/26055/noaa_26055_DS1.pdf
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Development of High-Resolution Dynamic Dust Source Function -A Case Study with a Strong Dust Storm in a Regional Model

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