naa a22 4500 510754805 CHVBK 20180411083118.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s13131-013-0382-5 doi (NATIONALLICENCE)springer-10.1007/s13131-013-0382-5 The validation of HY-2 altimeter measurements of a significant wave height based on buoy data [Elektronische Daten] [Jichao Wang, Jie Zhang, Jungang Yang] HY-2 has been launched by China on August 16, 2011 which assembles multi-microwave remote sensing payloads in a body and has the ability of monitoring ocean dynamic environments. The HY-2 satellite data need to be calibrated and validated before being put into use. Based on the in-situ buoys from the National Data Buoy Center (NDBC), Ku-band significant wave heights (SWH, hs) of HY-2 altimeter are validated. Eleven months of HY-2 altimeter Level 2 products data are chose from October 1, 2011 to August 29, 2012. Using NDBC 60 buoys yield 902 collocations for HY-2 by adopting collocation criteria of 30 min for temporal window and 50 km for a spatial window. An overall RMS difference of the SWH between HY-2 and buoy data is 0.297 m. A correlation coefficient between these is 0.964. An ordinary least squares (OLS) regression is performed with the buoy data as an independent variable and the altimeter data as a dependent variable. The regression equation of hs is h s(HY-2)=0.891×h s(NDBC)+0.022. In addition, 2016 collocations are matched with temporal window of 30min at the crossing points of HY-2 and Jason-2 orbits. RMS difference of Ku-band SWH between the two data sets is 0.452 m. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 altimeter nationallicence buoy nationallicence significant wave height nationallicence validation nationallicence regression analysis nationallicence Wang Jichao Institute of Oceanology, Chinese Academy of Sciences, 266071, Qingdao, China aut Zhang Jie First Institute of Oceanography, State Oceanic Administration (SOA), 266061, Qingdao, China aut Yang Jungang First Institute of Oceanography, State Oceanic Administration (SOA), 266061, Qingdao, China aut Acta Oceanologica Sinica Springer Berlin Heidelberg 32/11(2013-11-01), 87-90 0253-505X 32:11<87 2013 32 13131 https://doi.org/10.1007/s13131-013-0382-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0382-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Jichao Institute of Oceanology, Chinese Academy of Sciences, 266071, Qingdao, China aut NATIONALLICENCE 700 1- Zhang Jie First Institute of Oceanography, State Oceanic Administration (SOA), 266061, Qingdao, China aut NATIONALLICENCE 700 1- Yang Jungang First Institute of Oceanography, State Oceanic Administration (SOA), 266061, Qingdao, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica Springer Berlin Heidelberg 32/11(2013-11-01), 87-90 0253-505X 32:11<87 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer