Validation of L2A operational products of COCTS onboard HY-1C satellite across coastal waters in China and Europe

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چکیده

随着HY-1C卫星于2018å¹´9æœˆæˆåŠŸå‘å°„ï¼Œä¸­å›½æµ·æ´‹æ°´è‰²é¥æ„Ÿè¿›å ¥ä¸šåŠ¡åŒ–å ¨çƒè§‚æµ‹æ—¶ä»£ã€‚æµ·æ´‹çŽ¯å¢ƒè§‚æµ‹ã€ç”Ÿæ€çŽ¯å¢ƒç›‘æµ‹ä»¥åŠæµ·æ´‹é˜²ç¾å‡ç¾ç­‰éƒ½å¯¹æµ·æ´‹æ°´è‰²é¥æ„Ÿæå‡ºäº†è¾ƒé«˜çš„å®šé‡åŒ–è¦æ±‚ã€‚æœ¬æ–‡åŸºäºŽå›½é™ é€šç”¨çš„æ—¶ç©ºåŒ¹é æ–¹æ³•ï¼Œåˆ©ç”¨2018年和2020å¹´æµ·æ´‹å«æ˜Ÿåœ¨è½¨æµ‹è¯•æµ·ä¸Šè¯•éªŒä»¥åŠåœ¨ä¸­å›½ä¸œæµ·ã€æ¬§æ´²äºšå¾—é‡Œäºšæµ·è¿‘å²¸æµ·åŸŸéƒ¨ç½²çš„è‡ªåŠ¨å¤ªé˜³å ‰åº¦è®¡ï¼ˆSeaPRISM)观测数据,对HY-1C卫星搭载的水色水温扫描仪(COCTS)的L2Açº§ä¸šåŠ¡åŒ–äº§å“ï¼ˆåŒ æ‹¬é¥æ„Ÿåå°„çŽ‡å’Œæ°”æº¶èƒ¶å ‰å­¦åŽšåº¦ï¼‰è¿›è¡Œäº†çœŸå®žæ€§æ£€éªŒã€‚ç ”ç©¶å‘çŽ°ï¼ŒSeaPRISM自动测量能够提升数据获取效率和观测数据时间跨度,有助于更好刻画水色遥感产品误差的时间分布规律。检验结果表明,COCTSçš„é¥æ„Ÿåå°„çŽ‡ä¸ŽçŽ°åœºå®žæµ‹æ•°æ®å ·æœ‰è¾ƒå¥½çš„ä¸€è‡´æ€§ï¼Œä½†åŒ¹é æ•°æ®çš„ç¦»æ•£åº¦è¾ƒé«˜ï¼Œå ¶è“å ‰æ³¢æ®µã€ç»¿å ‰æ³¢æ®µå’Œçº¢å ‰æ³¢æ®µçš„é¥æ„Ÿåå°„çŽ‡åœ¨ä¸åŒæµ·åŸŸä¸Žå®žæµ‹æ•°æ®çš„å¹³å‡ç›¸å¯¹ç™¾åˆ†æ¯”åå·®ï¼ˆRPD)和平均绝对百分比偏差(APD)分别为-5.6%和46.8%、11.8%和53.0%、101.4%和173.9%ï¼Œè€Œå ¶æ°”æº¶èƒ¶å ‰å­¦åŽšåº¦çš„åœ¨ä¸åŒæµ·åŸŸä¸Žå®žæµ‹æ•°æ®çš„RPD和APD分别为-14.2%和79.5%;COCTSé¥æ„Ÿåå°„çŽ‡å ‰è°±å½¢çŠ¶ä¸Žå®žæµ‹æ•°æ®ä¸€è‡´æ€§è¾ƒé«˜ï¼Œä½†åœ¨ä¸åŒæµ·åŸŸè¡¨çŽ°å‡ºè¾ƒå¤§å·®å¼‚ï¼šä¸­å—æµ·æµ·åŸŸçš„è°±å½¢ä¸€è‡´æ€§éžå¸¸é«˜ï¼Œä½†å‘ˆæ˜¾è‘—é«˜ä¼°ç‰¹ç‚¹ï¼›ä¸­å›½ä¸œæµ·æµ·åŸŸçš„è°±å½¢ç›¸ä¼¼åº¦é«˜ï¼Œä½†å­˜æ˜¾è‘—çš„ä½Žä¼°ï¼›è€Œæ¬§æ´²äºšå¾—é‡Œäºšæµ·æµ·åŸŸçš„è°±å½¢å·®å¼‚è¾ƒå¤§ï¼Œå³åœ¨è“å ‰æ³¢æ®µå‘ˆçŽ°é«˜ä¼°ç‰¹ç‚¹ï¼Œè€Œåœ¨ç»¿å ‰å’Œçº¢å ‰æ³¢æ®µå‘ˆçŽ°ä½Žä¼°ç‰¹ç‚¹ã€‚å¯¹æ¯”åŒæœŸçš„HY-1C卫星COCTS L2A及产品与AQUA卫星MODISäºŒçº§äº§å“çš„æ£€éªŒç»“æžœå‘çŽ°ï¼ŒåŽè€ åœ¨é¥æ„Ÿåå°„çŽ‡ä¼°ç®—ç²¾åº¦å’Œå ‰è°±è°±å½¢ç›¸ä¼¼åº¦æ–¹é¢è¡¨çŽ°æ›´å¥½ï¼Œè€Œåœ¨æ°”æº¶èƒ¶å ‰å­¦åŽšåº¦å®šé‡åæ¼”æ–¹é¢åˆ™æ²¡æœ‰è¡¨çŽ°å‡ºæ˜¾è‘—ä¼˜åŠ¿ã€‚æœ¬æ–‡çš„ç ”ç©¶è®¤ä¸ºCOCTSæ•°æ®è™½ç„¶å·²ç»åœ¨å¤šä¸ªåº”ç”¨é¢†åŸŸå‘æŒ¥äº†é‡è¦ä½œç”¨ï¼Œä½†å ¶ä¸šåŠ¡åŒ–äº§å“çš„å®šé‡åŒ–ç²¾åº¦å’Œæ°´å¹³ä»æœ‰è¾ƒå¤§æå‡ç©ºé—´ï¼Œè‡³å°‘L2A级产品是如此。

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ژورنال

عنوان ژورنال: Journal of remote sensing

سال: 2023

ISSN: ['1007-4619', '2095-9494']

DOI: https://doi.org/10.11834/jrs.20235007