X-TRACK, Along track Tidal Constants (2018_01)

X-TRACK, is a regional altimeter products for coastal applications. Along-track tidal constants (amplitude, phase lags and associated estimation errors for 73 constituents) derived from the X-TRACK T/P and Jason 1&2 is available every 6-7 km along the satellite ground tracks.

X-TRACK areas :

| short name | long name |
|:------------|:---------------------------------|
| adelie | Adelie-Mertz |
| amazon | Amazon |
| asa | Atlantic South America |
| chinasea | China Sea |
| drake | Drake passage |
| eaustralia | East Australia |
| gom | Gulf of Mexico - Caribbean Sea |
| gulfstream | Gulf Stream |
| hudson | Hudson Bay |
| humboldt | Humboldt current |
| kerguelen | Kerguelen Islands |
| labrador | Labrador Sea |
| medsea | Mediterranean Sea |
| nea | North East Atlantic |
| nindian | North Indian Ocean |
| norway | Norway |
| nwa | North West America |
| nwp | North West Pacific |
| sea | South and East Africa |
| wafrica | West Africa |
| waustralia | West Australia |
| wla | West Latin America - California |
| wtp | West Tropical Pacific |