Hurricane Yasi intensity overlayed on a merged (SLA in cm) map for the 2nd of February. The hurricane intensity scale is purple for a tropical depression, blue for cat. 1, green for cat. 2, yellow for cat. 3, orange for cat.4 and red for category 5. The dates near the path indicates the date when the hurricane passed. Credits Cnes/CLS Ssalto/Duacs.

Maps of wind speed (in m/s) measured along-track by Jason-1 over the ocean. Only the ground tracks between the 2011/01/30 and the 2011/02/03 are represented.  Jason-1 measured some wind speeds (at the ocean surface), more than 15 m/s, when the the cyclone was steering for the coast. See the same maps for <link fileadmin images news mod_actus yasi_hurricane_en_wind.png download>Envisat and <link fileadmin images news mod_actus yasi_hurricane_j2_wind.png download>Jason-2Credits Cnes/CLS Ssalto/Duacs.

Altimetry-derived heights over an Australian river (click <link fileadmin images news mod_actus aus_ge_j2_p175.jpg download>here to see enlarged map of the area), every ten days between May 2010 and January 2011 (Jason-2 data processed for hydrology applications). At each date, the altimeter makes several measurements along the track (pass 175) either on land or on river. These measurements were done under pass 175 from cycle 070 (May-June 2010) to cycle 094 (January 2011) and are provided by Pistach project (IGDR products with a specific treatment adapted to continental waters). Credits CLS/Cnes.