This is just a convenient way to keep Dave Porter's "things to come" table handy. (SSS & SSV added).
| Platform | Data | Instrument |
| Satellite | Altimetry | Conventional altimeters (operational; TOPEX, ERS-2) |
| ENVISAT (planned) | ||
| Delay-Doppler Monopulse Altimeter (developing) | ||
| Bistatic GPS Altimeter (concept) | ||
| Gravity | GRACE (planned) | |
| Spectral Scanners | SeaWiFS (operational) | |
| MODUS (planned) | ||
| NEMO (planned) | ||
| Sea Surface Temperature | NOAA Polar Orbiters (operational) | |
| Synthetic Aperture Radar | Radarsat (operational) | |
| ERS-2 (operational) | ||
| ENVISAT (planned) | ||
| Sea Surface Salinity | Scanning Low Frequency Microwave Radiometer (SLFMR) (airborne testing) | |
| Electronically Scanned Thin Array Radiometer (ESTAR) (airborne testing) | ||
| Soil Moisture Ocean Salinity (SMOS) (proposed for late 2002) | ||
| Land-based | Sea Surface Velocity | CODAR (operational) |