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MM5 Data for Middle East
MM5 data for Middle East are available for 2006 in two formats
(tiled or native MM5 binary formats) and in the following three packages:
- Individual Tiles, of which there are 1080 covering the Full Domain,
- Regional Tile Groups (country-based groupings of tiled data), of which there are 18 over the Full Domain,
- Full Domain, in either tiled format (for use with the CALPUFF modeling system) or native binary format (for use with models such as CMAQ).
MM5 Data Characteristics
- Hourly time resolution
- Horizontal grid spacing: 12 km
- 40 vertical half-sigma levels:
- 16 levels below 1,000 meters
- 11, 34, 60, 90, 123, 160, 202, 250, 304, 365, 434, 511, 600, 700, 814, 944 meters (nominal heights above sea level surface)
- 9 levels between 1,000-3,500 meters
- 15 levels above 3,500 meters
- Projection Information:
Projection: Lambert Conformal Conic (LCC)
Origin: 25.0°N, 42.0°E
Matching Latitudes: 7.0°N, 42.0°N
Datum: NWS-84
12km Individual Tiles
Below is a plot showing the complete set of Individual Tiles covering the Full Domain.
Each tile covers an area of 120 km x 120 km (10 x 10 12-km grid points).
It includes hourly data for a full year. The time stamp of the data is UTC
(GMT) time. Each tile contains 8760 hours (or 8784 hours for a leap year)
plus 12 hours of the prior year (in UTC time) and 12 hours of the following
year (in UTC time).
The hourly 3-D meteorological parameters included in the tiles are wind speed,
wind direction, temperature, pressure, geopotential height, vertical velocity,
relative humidity, mixing ratios for water vapor, cloud water, rain, ice, snow,
graupel. Hourly surface (2-D) parameters in the tiles include sea-level pressure,
rainfall amount, snow cover, short wave and long wave radiation at the surface,
air temperature at 2m, specific humidity at 2m, wind speed and wind direction at
10m and sea surface temperature. There are 52,000 3-D data points per hour and
1,000 2-D data points per hour included in each tile. Each tile contains one
year of data in a packed (compressed) format that is roughly 450 MB in size.
CALMET contains algorithms to compute the cloud cover and ceiling height for
each CALMET grid point from the relative humidity and liquid water data contained
in the MM5 dataset.
Files:
12km Regional Tile Groups
Below is a plot showing the individual Regional Tile Groups, collections of tiles designed to cover one or more countries.
Files:
- MM5_MiddleEast_Regions.pdf (PDF: 4.886MB)
- plots of each of the 18 Regional Tile Groups on the Full Domain
- MM5_MiddleEast_Tiles.pdf (PDF: 1.33MB)
- detailed plots of each of the 18 Regional Tile Groups, including the Individual Tiles for each with Tile numbers
12km Full Domain
Below is a plot showing the full extents of the Middle East MM5 dataset.
Files:
12km Price List
Below is a summary of the pricing structure for the Middle East MM5 Dataset.
Note that for larger areas it is more cost-effective to purchase either complete
Regions or the Full Domain, while for smaller areas (120 km x 120 km) it may be more cost-effective
to purchase Individual Tiles. For example, in the Full Domain option the cost per tile
decreases to ~US$10 per tile, compared to a cost of US$200 per tile if purchased as Individual Tiles.
Tiles can be added at later times to cover larger areas. The extraction software
provided with the tiles combines tiles into a single 3D.DAT file. Each tile contains
one year of 3-D MM5 data for an area covering 120 km x 120 km.
12km Order Form
MM5_MiddleEast_Order_Form.doc (Word: 86KB)
MM5_MiddleEast_Order_Form.pdf (PDF: 30KB)
Higher Resolution MM5 Data
4 KM DATA
Below is the plot showing locations of currently available 3 sets of 4km MM5 data tiles over
Middle East (Domains 3 through 5).
Click on the plot below to see the exact locations of the Tiles in each of the three domains.
PRICE LIST
Below is a summary of the pricing structure for the higher resolution Middle Eastern MM5 datasets.
ORDER FORM
MM5_MiddleEast_HighRes_Order_Form.doc (Word: 73KB)
MM5_MiddleEast_HighRes_Order_Form.pdf (PDF: 25KB)
ADDITIONAL DATA
Additional higher resolution MM5 data within the MM5 Middle Eastern domain is available by special
order at 4 km or 1.33 km horizontal grid spacing. Please contact
asg@trcsolutions.com for more information.
Indicate the time period, location and resolution desired for the higher resolution data.
Available Storage Media
Individual tiles or the Regional Tile Groupings are available on either DVD or USB hard drive.
The Full Domain dataset is provided on a hard drive only. Be sure to specify the hard drive
format on the order form and include the fee if requesting the data on a hard drive.
External USB Hard Drive
Hard drives provided are USB 2.0 external drives of at least 300 GB capacity.
The power supply can handle voltage in the range of 100-240, 50-60Hz but contain
a USA-type of electric plug that will require an adapter (not provided).
User-supplied hard drives can be accommodated as a special order.
DVD/CD Orders
Orders of up to 10 tiles can be requested on CDs as a special order. Otherwise,
data will be provided on DVDs.
Special Orders
Please contact asg@trcsolutions.com for information
on special orders.
Software
Easy-to-use software is provided with the tiles to uncompress the data and create a
CALMET-compatible 3D.DAT file. Any rectangular set of tiles can be combined into a
3D.DAT file for input into CALMET. The user selects a range in terms of latitude/longitude
or MM5 grid points to be extracted and a time period and the extraction software will
identify the tiles needed and perform the data extraction. New tiles can be added to
existing tiles to allow the capability to create larger domains in the 3D.DAT files.
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For questions or comments, please contact asg@trcsolutions.com.
~ Last updated: March 19, 2009 ~
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