@article{fdi:010065333, title = {{P}reliminary assessment of {SARAL}/{A}lti{K}a observations over the {G}anges-{B}rahmaputra and {I}rrawaddy rivers}, author = {{F}rappart, {F}. and {P}apa, {F}abrice and {M}arieu, {V}. and {M}albeteau, {Y}. and {J}ordy, {F}. and {C}almant, {S}t{\'e}phane and {D}urand, {F}abien and {B}ala, {S}.}, editor = {}, language = {{ENG}}, abstract = {{R}adar altimetry has demonstrated strong capabilities for the monitoring of water levels of lakes, rivers and wetlands over the last 20years. {T}he {I}ndo-{F}rench {SARAL}/{A}lti{K}a mission, launched in {F}ebruary 2013, is the first satellite radar altimetry mission to carry onboard a {K}a-band sensor. {W}e propose here to evaluate the potential of this new instrument for land hydrology through comparisons with other altimetry-derived stages and discharges in the {G}anges-{B}rahmaputra and {I}rrawaddy river basins using its first year of data. {D}ue to the lack of concomitant in situ measurements for the current period, {J}ason-2 data, previously evaluated against in situ gauge records, were used as reference. {C}omparisons between {J}ason-2 and {SARAL}-derived water levels and discharges, and {J}ason-2 and {E}nvisat (which flew the same orbit as {SARAL} from 2002 to 2010)-derived ones, was performed. {T}ime-series of only one year of {SARAL}-derived water levels and discharges present better performances (lower {RMSE} and higher {R}, generally greater than 0.95) than the ones derived from {E}nvisat when compared with {J}ason-2.}, keywords = {{S}atellite altimetry ; validation ; water level ; discharge ; {INDE} ; {BENGALE} {GOLFE} ; {GANGE} ; {BRAHMAPOUTRE} ; {IRRAWADDY}}, booktitle = {}, journal = {{M}arine {G}eodesy}, volume = {38}, numero = {1}, pages = {568--580}, ISSN = {0149-0419}, year = {2015}, DOI = {10.1080/01490419.2014.990591}, URL = {https://www.documentation.ird.fr/hor/fdi:010065333}, }