Identification

Title

MPAS-A moisture-sensitivity simulations with convection-permitting resolution and regional configuration using the Model for Prediction Across Scales (MPAS) version 7.3

Abstract

The dataset includes post-processed model outputs from 12 regional configuration moisture-sensitivity simulations using the MPAS-A version 7.3. The Limited-Area domain encompasses 30°S to 51°N and -65°W to 59°E. A 15-km-3-km variable-resolution mesh is used with the 3-km refinement region elliptically shaped. The mesh is rotated 5° to ensure the track of pre-Helene remains within the refined region. The refined region is over Africa and parts of the Atlantic. The reason to use a combined Limited-Area and variable-resolution mesh is to be computationally effective while giving sufficient resolution at the edge of the domain for the initial and lateral boundary conditions to be assimilated and resolved appropriately. The model was initialized using ERA5 data to simulate the period of the African easterly wave (AEW) that became hurricane Helene in 2006 as in: https://doi.org/10.5065/t224-6s94. The regional configuration is used to allow altering initial and lateral boundary conditions of relative humidity (RH) through the entire atmospheric column using ERA5 pressure-level data. Perturbed experiments are done by randomly perturbing temperature at 1000 hPa (Gaussian with 0.6 K standard deviation). The dataset can be used to study this specific AEW case and other easterly waves, mesoscale convective systems, African weather, West African Monsoon, ITCZ, etc. Although the model produces 15-km--3-km horizontal grid outputs, the post-processed outputs available here were interpolated to a 0.25-degree by 0.25-degree latitude-by-longitude grid and 27 isobaric levels (in the vertical). More details of the data and analysis are published in the Journal of Advances in Modeling Earth Systems (JAMES): Núñez Ocasio et al. 2024. https://doi.org/10.1029/2023MS004070

Resource type

dataset

Resource locator

https://gdex.ucar.edu/dataset/id/e1403e10-7833-4cc5-803e-1078331cc5d3.html

protocol: https

applicationProfile: browser

name: MPAS-A moisture-sensitivity simulations with convection-permitting resolution and regional configuration using the Model for Prediction Across Scales (MPAS) version 7.3

description: Metadata Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY

EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > RAIN STORMS

EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > TROPICAL CYCLONES > TROPICAL DEPRESSION MOTION

EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER

EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER > EXTREME PRECIPITATION

EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER > MONSOON ONSET/INTENSITY

EARTH SCIENCE SERVICES > MODELS > ATMOSPHERIC GENERAL CIRCULATION MODELS

EARTH SCIENCE SERVICES > MODELS > WEATHER RESEARCH/FORECAST MODELS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Geographic location

West bounding longitude

-65.0

East bounding longitude

59.0

North bounding latitude

51.0

South bounding latitude

-30.0

Temporal reference

Temporal extent

Begin position

2006-09-08T12:00:00

End position

2006-09-13T18:00:00

Dataset reference date

date type

publication

effective date

2023-09-15

date type

modified

effective date

2023-08-23

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

application/x-netcdf

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License.

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

UCAR/NCAR - Mesoscale and Microscale Meteorology Laboratory

email address

knocasio@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - GDEX

email address

gdex@ucar.edu

responsible party role

pointOfContact

Metadata date

2024-07-11T17:43:04-06:00

Metadata language