Ku– and Ka-band Altimeter Data in the Northwestern Mediterranean Sea: Impact on the Observation of the Coastal Ocean Variability. Birol, F. and Niño, F. 38:313–327. Number: sup1
Ku– and Ka-band Altimeter Data in the Northwestern Mediterranean Sea: Impact on the Observation of the Coastal Ocean Variability [link]Paper  doi  abstract   bibtex   
The strong increase in altimeter measurement errors near land surfaces is a limiting factor for coastal applications. We analyze the performance of the new Ka-band SARAL/AltiKa (SRL) mission in the northwestern Mediterranean Sea. SRL sea surface height (SSH) measurements are compared with those from the Jason-2 Ku-band satellite mission. The results show a significant increase in both quantity and quality of SSH data available near coastlines when using SRL data. Available edited data are 95.1% of SRL compared with 88.6% for Jason-2. Closer than 10 km to the coastline, available SRL data are still about 60% and only about 31% for Jason-2. Comparisons of the altimeter sea level variations are made with available coastal tide gauge data. The differences obtained between altimeter and tide gauge SLA time series are reduced for SRL (3.3 cm in average) compared with Jason-2 (4.2 cm in average), especially closer than 30 km to the land. It results in higher correlations (by 30%) obtained with SRL data. The coastal circulation derived from altimetry using SRL data shows an offshore meandering, which is more stable in time and with larger velocities close to the coast than that derived from Jason-2 observations.
@article{birol_ku_2015,
	title = {Ku– and Ka-band Altimeter Data in the Northwestern Mediterranean Sea: Impact on the Observation of the Coastal Ocean Variability},
	volume = {38},
	issn = {0149-0419},
	url = {https://doi.org/10.1080/01490419.2015.1034814},
	doi = {10.1080/01490419.2015.1034814},
	shorttitle = {Ku– and Ka-band Altimeter Data in the Northwestern Mediterranean Sea},
	abstract = {The strong increase in altimeter measurement errors near land surfaces is a limiting factor for coastal applications. We analyze the performance of the new Ka-band {SARAL}/{AltiKa} ({SRL}) mission in the northwestern Mediterranean Sea. {SRL} sea surface height ({SSH}) measurements are compared with those from the Jason-2 Ku-band satellite mission. The results show a significant increase in both quantity and quality of {SSH} data available near coastlines when using {SRL} data. Available edited data are 95.1\% of {SRL} compared with 88.6\% for Jason-2. Closer than 10 km to the coastline, available {SRL} data are still about 60\% and only about 31\% for Jason-2. Comparisons of the altimeter sea level variations are made with available coastal tide gauge data. The differences obtained between altimeter and tide gauge {SLA} time series are reduced for {SRL} (3.3 cm in average) compared with Jason-2 (4.2 cm in average), especially closer than 30 km to the land. It results in higher correlations (by 30\%) obtained with {SRL} data. The coastal circulation derived from altimetry using {SRL} data shows an offshore meandering, which is more stable in time and with larger velocities close to the coast than that derived from Jason-2 observations.},
	pages = {313--327},
	issue = {sup1},
	journaltitle = {Marine Geodesy},
	author = {Birol, Florence and Niño, Fernando},
	urldate = {2019-04-17},
	date = {2015-09-10},
	note = {Number: sup1},
	keywords = {satellite altimetry, northwestern Mediterranean Sea, Northern Current, Coastal dynamics, sea surface observations}
}
Downloads: 0