<URL:http://aprf.arl.mil>
<URL:ftp://aprf.arl.mil/>
  Army Research Laboratory's Atmospheric Profiler Research Facility.
Real-time, hour-averaged, qc'd, surface to stratosphere profiles of wind, temperature, and optical/radar turbulence from the Atmospheric Profiler Research Facility, White Sands, New Mexico.  Archives back through 1994.
  This site is scheduled to close down in September 1996. 

<URL:http://www.joss.ucar.edu/codiac>
  UCAR Joint Office for Science Support.   A large number of datasets from various field projects and research programs, including  CEPEX,  GCIP, STORM-FEST, TOGA-COARE, are available via "CODIAC" -- The Cooperative Distributed Interactive Atmospheric Catalog.  

<URL:telnet://kuda.atd.ucar.edu> (login "kuda", password "science")
  Many types of atmospheric measurements and supporting data from the 
Persian Gulf region during the Kuwait oil well fires (1991).  Inventory 
includes aircraft measurements of particulates, chemistry, radiation, and state parameters, surface-based meteorological, air quality, and radiation measurements, model output grids, and digital satellite images from NOAA and DMSP polar orbiters.  
  For more information, contact kudastaff@kuda.atd.ucar.edu

<URL:http://ltpwww.gsfc.nasa.gov/MODIS/MAS/Home.html>
  Information about, and data from, the MODIS Airborne Simulator multispectral scanner.

<URL:http://www.amps.gov>
  The US Department of Energy's Airborne Multisensor Pod System (AMPS) 
collects a variety of data from multiple sensors mounted on a modified 
Lockheed RP-3A.  Currently the sensors include Synthetic Aperture Radar 
(SAR) and MultiSensor Imaging (MSI) pods; Effluent Species Identification (ESI) pod is currently under construction.  Information about the AMPS project and data is available.

<URL:http://www.jpl.nasa.gov/sircxsar>
  Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) flew on space shuttle Endeavour on two missions in 1994.  Images from these flights, and information about the instrument.