Source/Sensor: Jason-1/Poseidon-2 altimeter 

Coverage: Near-Real-Time (3-hour latency), global oceans 

Abstract: OSDR files are provided every 2 hours and within 3 hours of data collection. They contain wave height, wind speed and water vapor measurements computed using real-time on-board DORIS/DIODE orbits (better than accuracy 20 cm) and other rapidly available corrections. 

Data Set Volume: 

PO.DAAC anonymous ftp site: podaac.jpl.nasa.gov 
Directory: pub/sea_surface_height/jason/osdr/ 

Smallest order: Two-hour segment file via ftp 

Std. product: ftp 

Formats: Binary data (unix byte-order) with ASCII header