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EM: Impact of assimilated precipitation-sensitive radiances on the NU-WRF simulation, West Africa (EM-1029)
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Expand AllEM Identity and Description
EM Identification
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EM ID
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EM-1029 |
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EM Short Name
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Precipitation radiance simulation, West Africa |
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EM Full Name
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Impact of assimilated precipitation-sensitive radiances on the NU-WRF simulation, West Africa |
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EM Source or Collection
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None |
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EM Source Document ID
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489 |
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Document Author
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Zang, S., Matsui, T., Cheung, S., Zupanski, M., and C. Peters-Lidard |
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Document Year
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2017 |
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Document Title
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Impact of Assimilated Precipitation-Sensitive Radiances on the NU-WRF Simulation of the West African Monsoon |
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Document Status
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Peer reviewed and published |
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Comments on Status
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Published journal manuscript |
Software and Access
| Software Usage Agreement. Carlos Cruz (carlos.a.cruz@nasa.gov) | |
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Contact Name
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Sara Zang |
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Contact Address
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NASA Goddard Space Flight Center, Greenbelt, Maryland, and Science Applications International Corporation, McLean, Virginia |
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Contact Email
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sara.q.zhang@nasa.gov |
EM Description
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Summary Description
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ABSTRACT: "This work assimilates multisensor precipitation-sensitive microwave radiance observations into a stormscale NASA Unified Weather Research and Forecasting (NU-WRF) Model simulation of the West African monsoon. The analysis consists of a full description of the atmospheric states and a realistic cloud and precipitationdistribution that is consistent with the observed dynamic and physical features. The analysis shows an improved representation of monsoon precipitation and its interaction with dynamics over West Africa. Most significantly, assimilation of precipitation-affected microwave radiance has a positive impact on the distribution of precipitation intensity and also modulates the propagation of cloud precipitation systems associated with the African easterly jet. Using an ensemble-based assimilation technique that allows statedependent forecast error covariance among dynamical and microphysical variables, this work shows that the assimilation of precipitation-sensitive microwave radiances over the West African monsoon rainband enables initialization of storms. These storms show the characteristics of continental tropical convection that enhance the connection between tropical waves and organized convection systems." |
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Specific Policy or Decision Context Cited
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None |
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Biophysical Context
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Meteorological weather prediction |
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EM Scenario Drivers
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None |
EM Relationship to Other EMs or Applications
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Method Only, Application of Method or Model Run
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Method + Application |
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New or Pre-existing EM?
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Application of existing model |
Related EMs (for example, other versions or derivations of this EM) described in ESML
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Document ID for related EM
em.detail.relatedEmDocumentIdHelp
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Doc-484 |
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EM ID for related EM
em.detail.relatedEmEmIdHelp
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EM-1022 |
EM Modeling Approach
EM Relationship to Time
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EM Temporal Extent
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August 9-16, 2006 |
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EM Time Dependence
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time-dependent |
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EM Time Reference (Future/Past)
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past time |
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EM Time Continuity
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discrete |
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EM Temporal Grain Size Value
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3 |
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EM Temporal Grain Size Unit
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Hour |
EM Spatial Extent
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Bounding Type
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Physiographic or ecological |
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Spatial Extent Name
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West Africa |
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Spatial Extent Area (Magnitude)
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100,000-1,000,000 km^2 |
Spatial Distribution of Computations
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EM Spatial Distribution
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spatially distributed (in at least some cases) |
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Spatial Grain Type
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area, for pixel or radial feature |
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Spatial Grain Size
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9km2 |
EM Structure and Computation Approach
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EM Computational Approach
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Analytic |
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EM Determinism
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deterministic |
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Statistical Estimation of EM
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Model Checking Procedures Used
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Model Calibration Reported?
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Yes |
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Model Goodness of Fit Reported?
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No |
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Goodness of Fit (metric| value | unit)
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None |
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Model Operational Validation Reported?
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Yes ?Comment:simulation with actual ground data for precipitation |
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Model Uncertainty Analysis Reported?
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Unclear |
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Model Sensitivity Analysis Reported?
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Unclear |
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Model Sensitivity Analysis Include Interactions?
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Not applicable |
EM Locations, Environments, Ecology
Location of EM Application
Terrestrial location (Classification hierarchy: Continent > Country > U.S. State [United States only])
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Marine location (Classification hierarchy: Realm > Region > Province > Ecoregion)
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| None |
Centroid Lat/Long (Decimal Degree)
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Centroid Latitude
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10.97 |
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Centroid Longitude
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-4.84 |
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Centroid Datum
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WGS84 |
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Centroid Coordinates Status
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Estimated |
Environments and Scales Modeled
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EM Environmental Sub-Class
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Open Ocean and Seas |
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Specific Environment Type
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Terrestrial land |
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EM Ecological Scale
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Ecological scale corresponds to the Environmental Sub-class |
Scale and taxa of organisms modeled
Scale of differentiation of organisms modeled
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EM Organismal Scale
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Not applicable |
Taxonomic level and name of organisms or groups identified
taxonomyHelp
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| None Available |
EnviroAtlas URL
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| Average Annual Precipitation, Average Annual Daily Potential Wind Energy |
EM Ecosystem Goods and Services (EGS) potentially modeled, by classification system
CICES v 4.3 - Common International Classification of Ecosystem Services (Section > Division > Group > Class)
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(Environmental Subclass > Ecological End-Product (EEP) > EEP Subclass > EEP Modifier)
fegs2Help
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| None |
EM Variable Names (and Units)
Predictor
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Intermediate
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Intermediate (Computed) Variables (and Units)
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None |
Response
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Observed Response Variables (and Units)
view details (4 variables)
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Computed Response Variables (and Units)
view details (1 variable)
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