Since 1983, Simpson Weather Associates has been funded by NASA, NOAA, U.S. DoD, CNRS, Lockheed, General Electric, Northrop Grumman and Ball Aerospace to develop simulation models for space-based and airborne Doppler lidar wind measuring systems, Scatterometter instruments and Cloud Motion Vector Wind Model algorithms.

Space-based and Airborne System DWL Simulation Models

DLSMpicture

* Graphic based upon image created at NASA/LaRC

The Doppler Lidar Simulation Model (DLSM) is an evolution of existing Doppler lidar simulation models that are currently used for spaced-based and airborne Doppler lidar wind simulations. The DLSM provides an interactive simulation that allows a user to address issues ranging from lidar system trade studies to global numerical model assimilation and impact studies with an emphasis on sampling in cloudy environments.

DLSM version 4.4 Technical Manual (pdf)

marsmission

* Graphic based upon image created at NASA/LaRC

Planetary winds have implications to understanding planetary weather and planetary exploration. In the case of Mars, the interplay between winds, dust storms and the radiative feedback is critical to the prediction of operational meteorology but remains poorly understood. The Mars Lidar Simulation Model (MLSM)is a simulation model that is intended to help develop several lidar concepts that would provide critical observations of winds, aerosols and gases on Mars.

MLSM Version 1.0 Technical manual (pdf)

QUIKSCAT07_28_2005

The Scatterometer Simulation Model (ScattrSM) produces simulated Ocean wind speeds and directions at 10 M using ECMWF or AOML Nature Runs. Current supported scatterometers are QuikScat (25 km resolution) - Ku band and ASCAT (50 km resolution) - C band.

  • Scatterometer Simulation Model (ScattrSM). Simpson Weather Associates Note, Oct. 2012. (pdf)

 

 

 

eldcloud

The Cloud Motion Vector (CMV) algorithm simulates cloud track winds from ECMWF and AOML WRF Nature Runs for Observation System Simulation Experiments. Simulated Cloud motion Winds (CMW) are produced for all geosynchronous satellites in an area extending 60 from the sub-point.

  • Cloud Motion Wind Vector Algorithm. Simpson Weather Associates Note, Oct. 2012. (pdf)
  • Further Development of an Algorithm For Simulating Cloud Motion Vectors From Global Circulation Model Data, Simpson Weather Associates report, Sept. 2002. (pdf)
  • Simulating Cloud Motion Vectors From Global Circulation Model Data For Use in OSSEs: A Preliminary, But Useful, Algorithm For Application to Current NASA/NOAA OSSE Projects, Simpson Weather Associates report, Oct. 2001. (pdf)

CONTACTS

G. D. Emmitt  This email address is being protected from spambots. You need JavaScript enabled to view it.          S. A. Wood  This email address is being protected from spambots. You need JavaScript enabled to view it.          S. Greco  This email address is being protected from spambots. You need JavaScript enabled to view it.