Review on global digital elevation products

نویسندگان

چکیده

éšç€ä¸–ç•Œå„å›½ä¹ƒè‡³å ¨çƒä¿¡æ¯åŒ–å’Œæ•°å­—åŒ–çš„å‘å±•ä»¥åŠå ¨çƒåŒ–çƒ­ç‚¹é—®é¢˜çš„ç ”ç©¶ï¼Œé«˜ç²¾åº¦ã€é«˜åˆ†è¾¨çŽ‡å ¨çƒæ•°å­—é«˜ç¨‹äº§å“åœ¨å¹¿æ³›çš„åº”ç”¨é¢†åŸŸä¸­æ‰®æ¼”ç€è¶Šæ¥è¶Šé‡è¦çš„è§’è‰²ã€‚ä¸ºäº†æ–¹ä¾¿ä¸åŒç”¨æˆ·æ ¹æ®ä¸ªäººéœ€æ±‚é€‰æ‹©åˆé€‚çš„æ•°æ®äº§å“ï¼Œæœ¬æ–‡é¦–å ˆè®ºè¿°äº†æ•°å­—é«˜ç¨‹äº§å“çš„ç²¾åº¦è¡¡é‡æŒ‡æ ‡ï¼Œå¹¶å¯¹å ¶å¸¸ç”¨çš„æŒ‡æ ‡è¿›è¡Œç­‰ä»·æè¿°ï¼Œä»¥ä¾¿ä¸åŒæ•°å­—äº§å“ä¹‹é—´çš„æ¯”è¾ƒåˆ†æžï¼›ç„¶åŽä»Žå ¨çƒåŒ–é«˜ç¨‹æ•°æ®çš„èŽ·å–æ–¹å¼å‡ºå‘ï¼Œç»ç”±æœ€åˆçš„å¤šæºæ•°æ®èžåˆï¼Œåˆ°åŽç»­åŸºäºŽå ‰å­¦ç«‹ä½“æ‘„å½±æµ‹é‡åŠåˆæˆå­”å¾„é›·è¾¾å¹²æ¶‰æµ‹é‡InSAR(Interferometric Synthetic Aperture Radarï¼‰çš„å ¨çƒæµ‹å›¾ï¼Œå¯¹å ¶å‘å±•çš„ETOPO、GTOPO30、GMTED2010、ASTER GDEM、AW3D30、SRTM及TanDEM-X DEMå ¨çƒåŒ–æ•°æ®äº§å“çš„ä¸»è¦æ€§è´¨å’Œç‰¹ç‚¹è¿›è¡Œè¯¦ç»†ä»‹ç»ï¼Œå¹¶ç®€å•æ¦‚æ‹¬äº†ä¸åŒæ•°å­—äº§å“çš„å‘å±•åŽ†ç¨‹ã€‚åœ¨æ­¤åŸºç¡€ä¸Šï¼Œæœ¬æ–‡ä»¥å®å¤å›žæ—è‡ªæ²»åŒºå´å¿ å¸‚ä¸€åº§å±±è„‰ä¸ºä¾‹ï¼Œé€šè¿‡å®šæ€§åŠå®šé‡å¯¹æ¯”çš„æ–¹å¼è¯¦ç»†åˆ†æžäº†1″及3â€³ç»çº¬åº¦æ ¼ç½‘åˆ†è¾¨çŽ‡ä¸‹çš„æ•°å­—é«˜ç¨‹äº§å“ã€‚åˆ†æžè¡¨æ˜Žï¼Œå¯¹äºŽé‡‡ç”¨åŒä¸€ç§æŠ€æœ¯æ‰‹æ®µç”Ÿäº§çš„æ•°å­—é«˜ç¨‹äº§å“ï¼ŒAW3D30及ASTER GDEM均展现出相对丰富的地貌细节特征,均优于SRTM及TanDEM-X DEM产品,但ASTER GDEM产品颗粒效应明显,且产品精度较低;而TanDEM-X DEMæ˜¯ä»Žæ›´é«˜åˆ†è¾¨çŽ‡äº§å“é‡é‡‡æ ·èŽ·å–ï¼Œå› æ­¤ç›¸å¯¹å¹³æ»‘ï¼›å°±æ•°å­—é«˜ç¨‹äº§å“çš„é«˜ç¨‹ç²¾åº¦è€Œè¨€ï¼ŒTanDEM-X DEMäº§å“ç²¾åº¦æœ€é«˜ï¼Œå ¶æ¬¡ä¸ºAW3D30及SRTMäº§å“ï¼Œå‡è¿œä¼˜äºŽç”±å¤šæºæ•°æ®èžåˆèŽ·å–çš„å ¨çƒæ•°å­—äº§å“ã€‚

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ژورنال

عنوان ژورنال: Journal of remote sensing

سال: 2021

ISSN: ['1007-4619', '2095-9494']

DOI: https://doi.org/10.11834/jrs.20210210