摘要：Waveform patterns of satellite altimetry affect the accuracy of sea surface height estimation from the satellite. The waveform patterns found in the coastal waters are generally not in the ideal form (Brown-waveform), resulting inaccurate in sea surface height estimation. The objectives of this research were to identify patterns of the waveform and determine their variability. Satellite altimetry Jason-2 SGDR (Sensor Geophysical Data Record) type D data located in the southern Java island waters of the year of 2013 were used and downloaded from “NOAA's Comprehensive Large Array-data Stewardship System” (www.class.ncdc.noaa.gov). Waveform identification and analyses were conducted along the satellite pass within the distance of 0-10 km, 10-50 km, and 50-100 km form the coastline. Results showed that the highest number of non-Brown-waveform was found within 0-10 km of the coastline (69%). Meanwhile, within the distance of 10-50 km and 50-100 km from the coastline, the number of non-Brown waveform was 5% and 3%, respectively. Brown waveform patterns could be found generally starting at 7.58 km from the coastline. Factors such as land near coastal waters, the depth and shape of the surface waters, aerosols in the atmosphere, building (example: lighthouse or ship) found in coastal areas suspected to be the cause of the noise in waveforms.
其他摘要：Pola waveform data satelit altimeter mempengaruhi tingkat akurasi hasil estimasi ketinggian paras laut dari satelit altimeter. Pola waveform yang ditemui di perairan pesisir umumnya tidak mengikuti pola waveform yang ideal (Brown-waveform) sehingga mengha
关键词：Borwn and non-Brown waveform; sea level height; altimetry satellite; identification
其他关键词：Brown and non-Brown waveform; paras laut; satelit altimeter; identifikasi
