The Community Doppler Lidar Simulation Model (DLSM)

GADS Atmospheric and Optical Property Variables


A record's content is shown for each GADS type below. Graphic examples for various inputs are provided.

GADS DATA RECORDS
DAO-based GADS Data Record T213-based GADS Data Record T106-based GADS Data Record
Center of Grid Area Latitude (deg) Center of Grid Area Latitude (deg) Center of Grid Area Latitude (deg)
Center of Grid Area Longitude (deg) Center of Grid Area Longitude (deg) Center of Grid Area Longitude (deg)
Geo-potential Height at surface (m)  Surface Temperature (K) Surface Pressure (mb)
Sea Level Pressure (MB) Mean Sea Level Pressure (MB) Surface Altitude (km)
Surface Pressure (MB) 10 m Horz. Wind U (m/s) Cloud Cover (0-1)
Ground  Temperature (K) 10 m Horz. Wind V (m/s) Terrain Height Level Index
Instant Precip.  Surface Roughness (M) Tropopause Height Level Index
High Cloud Amount (%) Albedo Surface Temperature (k)
Low Cloud  Amount (%) Low Cloud Fraction (0-1) Surface Dewpoint Temperature (K)
Medium Cloud Amount (%) Medium Cloud Fraction (0-1) 10 m Horz. Wind U (m/s)
Total Cloud Amount (%) High Cloud Fraction (0-1) 10 m Horz. Wind V (m/s)
Surface Type Flag  Total Cloud Fraction (0-1) Convective Precip. (mm/day)
Planetary Boundary Layer (m) Planetary Boundary Layer (km) Geopotential Height Profile (m)
Convective Precip. Rate  Surface Geopotential Height (M) Temperature Profile (k)
Large Scale Precip. Rate  Temperature   Profile (K) Relative Humidity Profile (%)
Specific Humidity at Two Meter  (G/G) U Horizontal Wind   Profile (m/s) U Horizontal wind Profile (m/s)
Temperature at Two Meters (K)  V Horizontal Wind   Profile (m/s) V Horizontal wind Profile (m/s)
Horizontal Wind Comp. U at 2 Meters (m/s) Specific Humidity   Profile (G/G) Vertical Velocity Profile (pa/s)
Horizontal Wind Comp. U at 10 Meters (m/s) Vertical Velocity   Profile (Pa/s) Cloud Percentage Profile (%)
Horizontal Wind Comp. V at 2 Meters (m/s) Cloud Liq. Water Con. Profile (g/kg) Int. Cloud Percentage Profile I (%)
Horizontal Wind Comp. V at 10 Meters (m/s) Cloud Fraction   Profile (0-1) Int. Cloud Percentage Profile II (%)
Geo-potential Height Profile (m)  Geopotential Height   Profile (m) Incremental cloud amount (%)
Air Temperature Profile (k) Backscatter   Profile (m-1 sr-1) Layer Index for a Cirrus Cloud
Horizontal Wind Comp. U Profile (M/S) Attenuation   Profile (km-1) Cloud Type Index
 Horizontal Wind Comp. V Profile (M/S) Cloud Backscatter   Prof. (m-1 sr-1) Backscatter Profile (m-1 sr-1)
Vertical Velocity Profile (Pa/S) Cloud Attenuation   Profile (km-1) Attenuation Profile (km-1)
Specific Humidity Profile (%)    Cloud Backscatter Prof. (m-1 sr-1)
 Relative Humidity Profile (%)    Cloud Attenuation Profile (km-1)
Cloud Liquid Water Content path Profile 
 Cloud Fraction Profile (%) 
 Effective Cloud Fraction Profile (%) 
Space View Of cloud Fraction Profile (%) 
Cloud Type Profile 
Eddy Diffusivity For Momentum Profile 
Subgrid Scale Standard Deviation in U Profile (9 point) (M/S)
Subgrid Scale Standard Deviation in V Profile (9 point) (M/S)
Subgrid Scale Standard Deviation in W Profile (9 point) (M/S)
Aer. Backscatter Profile log10(m-1 sr-1)
Aerosol Scattering Profile log10(km-1)
Total Attenuation Profile log10(km-1)
Cloud Total Attenuation Profile log10(km-1)
Cloud Backscatter Profile log10(m-1 sr-1)
Cloud Scattering Profile log10(km-1)
Molecular Attenuation Profile log10(km-1)
Mol. Backscatter Profile log10(m-1 sr-1)
Molecular Scattering Profile log10(km-1)

The DAO data profiles are for 35 pressure levels: 1000, 996, 988, 979, 969, 958, 947, 935, 922, 894, 850, 830, 800, 750, 700, 650, 600, 550,  500, 450, 400, 350, 300, 250, 200, 150, 100, 70, 50, 30, 10, 5, 2, 1, .5 mb

The T213 data profiles for 31 pressure levels: 1013, 1000, 996, 988, 979, 969, 958, 957, 935, 922, 894, 850, 830, 800, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 200, 150, 100, 70, 50, 30, 10 mb.

The T106 data profiles for 15 pressure levels: 1013, 1000, 850, 700, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 10 mb.

© Copyright 1995-2005, Simpson Weather Associates, Inc.


Last Updated: 02/07/2007