{"id":149,"date":"2021-07-21T19:28:00","date_gmt":"2021-07-21T11:28:00","guid":{"rendered":"http:\/\/47.107.115.238\/?p=149"},"modified":"2024-09-25T15:25:08","modified_gmt":"2024-09-25T07:25:08","slug":"sentinel-1-2","status":"publish","type":"post","link":"https:\/\/lxylp.com\/?p=149","title":{"rendered":"sentinel-1\/2"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" 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href=\"https:\/\/lxylp.com\/?p=149\/#%E5%93%A8%E5%85%B51%E5%8F%B7%E7%9A%84%E6%9D%A1%E5%B8%A6%E6%89%AB%E6%8F%8F%E6%A8%A1%E5%BC%8F\" title=\"\u54e8\u51751\u53f7\u7684\u6761\u5e26\u626b\u63cf\u6a21\u5f0f\">\u54e8\u51751\u53f7\u7684\u6761\u5e26\u626b\u63cf\u6a21\u5f0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lxylp.com\/?p=149\/#%E5%93%A8%E5%85%B51%E5%8F%B7%E7%9A%84%E6%95%B0%E6%8D%AE%E4%BA%A7%E5%93%81\" title=\"\u54e8\u51751\u53f7\u7684\u6570\u636e\u4ea7\u54c1\">\u54e8\u51751\u53f7\u7684\u6570\u636e\u4ea7\u54c1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lxylp.com\/?p=149\/#%E5%BA%94%E7%94%A8\" title=\"\u5e94\u7528\">\u5e94\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/lxylp.com\/?p=149\/#%E6%9E%81%E5%8C%96%E6%96%B9%E5%BC%8F\" title=\"\u6781\u5316\u65b9\u5f0f\">\u6781\u5316\u65b9\u5f0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/lxylp.com\/?p=149\/#%E5%93%A8%E5%85%B51%E5%8F%B7%E5%88%86%E8%BE%A8%E7%8E%87\" title=\"\u54e8\u51751\u53f7\u5206\u8fa8\u7387\">\u54e8\u51751\u53f7\u5206\u8fa8\u7387<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/lxylp.com\/?p=149\/#sentinelsat_%E6%89%B9%E9%87%8F%E4%B8%8B%E8%BD%BD\" title=\"sentinelsat \u6279\u91cf\u4e0b\u8f7d\">sentinelsat \u6279\u91cf\u4e0b\u8f7d<\/a><\/li><\/ul><\/nav><\/div>\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%93%A8%E5%85%B52%E5%8F%B7\"><\/span>\u54e8\u51752\u53f7<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>\u54e8\u5175 2 \u53f7\u5171\u6709 13 \u4e2a\u6ce2\u6bb5\uff0c\u76ee\u524d\u6709 2 \u9897\u536b\u661f\uff0c\u7b2c\u4e00\u9897\u536b\u661f Sentinel 2A 2015\u5e74\u53d1\u5c04\uff0c\u7b2c\u4e8c\u9897 Sentinel 2B 2017\u5e74\u53d1\u5c04\uff0c\u540e\u7eed Sentinel 2C, Sentinel 2D \u5c06\u4e8e 2024\u5e74\u53d1\u5c04\uff0c\u8fd9\u6837\u5c06\u6709 4 \u9897\u54e8\u5175 2 \u53f7\u536b\u661f\uff0c\u540e\u7eed\u53d1\u5c04\u7684\u536b\u661f\u5c06\u63d0\u9ad8\u4e00\u500d\u54e8\u5175 2 \u53f7\u7684\u91cd\u574a\u5468\u671f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B3%A2%E6%AE%B5%E4%BB%8B%E7%BB%8D\"><\/span>\u6ce2\u6bb5\u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u54e8\u5175\u4e8c\u53f7\u88c5\u8f7d\u591a\u5149\u8c31\u6210\u50cf\u4eea\uff0c\u4f20\u611f\u5668\u5171\u6709 13 \u4e2a\u6ce2\u6bb5\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387\u4ece 10m \u5230 60m \u90fd\u6709\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u84dd(B2)\u3001\u7eff(B3)\u3001\u7ea2(B4)\u548c\u8fd1\u7ea2\u5916(B8)\u6ce2\u6bb5\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387\u4e3a 10m<\/li>\n\n\n\n<li>\u7ea2\u8fb9(B5)\u3001\u8fd1\u7ea2\u5916(B6, B7, B8A)\u3001\u548c\u77ed\u6ce2\u7ea2\u5916(B11, B12)\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387\u4e3a 20m<\/li>\n\n\n\n<li>\u6d77\u5cb8\u5e26\/\u6c14\u6eb6\u80f6(B1)\u3001\u5377\u4e91\u6ce2\u6bb5(B10)\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387 60m<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B3%A2%E6%AE%B5%E7%BB%84%E5%90%88\"><\/span>\u6ce2\u6bb5\u7ec4\u5408<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u771f\u5f69\u8272\uff084\uff0c3\uff0c2\uff09<\/li>\n\n\n\n<li>\u5047\u5f69\u8272\uff088\uff0c4\uff0c3\uff09<br>If you want to see Sentinel band combinations for yourself, you can check out the <a href=\"https:\/\/www.sentinel-hub.com\/explore\/sentinelplayground\/\">Sentinel Playground<\/a>. It visualizes the band combinations below, as well as several more.<br>\u53c2\u8003\u6587\u732e\uff1a<\/li>\n\n\n\n<li><a href=\"https:\/\/gisgeography.com\/sentinel-2-bands-combinations\/\">GISGeography<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.sentinel-hub.com\/explore\/sentinelplayground\/\">Sentinel Playground<\/a><\/li>\n<\/ol>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%93%A8%E5%85%B51%E5%8F%B7\"><\/span>\u54e8\u51751\u53f7<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>\u54e8\u51751\u53f7sentinel-1 \u7531\u4e24\u9897\u6781\u8f68\u536b\u661fA\u661f\u548cB\u661f\u7ec4\u6210\u3002\u4e24\u9897\u536b\u661f\u642d\u8f7d\u7684\u4f20\u611f\u5668\u4e3a\u5408\u6210\u5b54\u5f84\u96f7\u8fbe\uff08SAR\uff09\uff0c\u5c5e\u4e8e\u4e3b\u52a8\u5fae\u6ce2\u9065\u611f\u536b\u661f\u3002\u4f20\u611f\u5668\u642d\u8f7dC\u6ce2\u6bb5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%93%A8%E5%85%B51%E5%8F%B7%E7%9A%84%E6%9D%A1%E5%B8%A6%E6%89%AB%E6%8F%8F%E6%A8%A1%E5%BC%8F\"><\/span>\u54e8\u51751\u53f7\u7684\u6761\u5e26\u626b\u63cf\u6a21\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SM(Stripmap\uff09\uff1a\u4e00\u79cd\u6807\u51c6\u7684SAR\u6761\u5f62\u56fe\u6210\u50cf\u6a21\u5f0f\uff0c\u5176\u4e2d\u5730\u9762\u533a\u57df\u88ab\u8fde\u7eed\u7684\u8109\u51b2\u5e8f\u5217\u7167\u4eae\uff0c\u800c\u5929\u7ebf\u6ce2\u675f\u6307\u5411\u4e00\u4e2a\u56fa\u5b9a\u7684\u65b9\u4f4d\u89d2\u548c\u4ef0\u89d2\u3002<br><code>SM\u6a21\u5f0f\u4ec5\u7528\u4e8e\u5c0f\u5c9b\u5c7f\uff0c\u5728\u7d27\u6025\u60c5\u51b5\u7ba1\u7406\u7b49\u7279\u6b8a\u4e8b\u4ef6\u65f6\u4f7f\u7528\u3002<\/code><\/li>\n\n\n\n<li>L0 RAW<\/li>\n\n\n\n<li>L1 SLC<\/li>\n\n\n\n<li>L1 GRD (Full resolution, High resolution, Medium resolution)<\/li>\n\n\n\n<li>IW(Interferometric Wide swath):IW)\u6a21\u5f0f\u662f\u9646\u5730\u4e0a\u7684\u4e3b\u8981\u91c7\u96c6\u6a21\u5f0f\uff0c\u6ee1\u8db3\u4e86\u5927\u90e8\u5206\u4e1a\u52a1\u9700\u6c42\u3002\u5b83\u4ee55\u7c73 x 20\u7c73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387(\u5355\u89c6)\u83b7\u53d6250\u516c\u91cc\u957f\u7684\u6570\u636e\u3002IW\u6a21\u5f0f\u4f7f\u7528\u6e10\u8fdb\u626b\u63cfSAR (TOPSAR)\u5730\u5f62\u89c2\u6d4b\u6355\u83b7\u4e09\u4e2a\u5b50\u533a\u57df\u3002\u5728TOPSAR\u6280\u672f\u4e2d\uff0c\u9664\u4e86\u50cf\u626b\u63cf\u96f7\u8fbe\u4e00\u6837\u63a7\u5236\u6ce2\u675f\u7684\u8303\u56f4\u5916\uff0c\u6ce2\u675f\u8fd8\u53ef\u4ee5\u5728\u6bcf\u4e2a\u7206\u53d1\u7684\u65b9\u4f4d\u89d2\u65b9\u5411\u4e0a\u7531\u540e\u5411\u524d\u8fdb\u884c\u7535\u5b50\u63a7\u5236\uff0c\u907f\u514d\u4e86\u6247\u5f62\u73b0\u8c61\uff0c\u5e76\u5bfc\u81f4\u6574\u4e2a\u533a\u57df\u7684\u56fe\u50cf\u8d28\u91cf\u5747\u5300\u3002<\/li>\n\n\n\n<li>L0 RAW<\/li>\n\n\n\n<li>L1 SLC<\/li>\n\n\n\n<li>L1 GRD (High resolution, Medium resolution)<\/li>\n\n\n\n<li>EW(Extra Wide swath):\u4f7f\u7528TOPSAR\u6210\u50cf\u6280\u672f\u5728\u4e94\u4e2a\u533a\u57df\u83b7\u53d6\u6570\u636e\u3002EW\u6a21\u5f0f\u4ee5\u727a\u7272\u7a7a\u95f4\u5206\u8fa8\u7387\u4e3a\u4ee3\u4ef7\u63d0\u4f9b\u4e86\u975e\u5e38\u5927\u7684\u533a\u57df\u8986\u76d6\u3002(\u8a00\u5916\u4e4b\u610f\u662f\u7a7a\u95f4\u5206\u8fa8\u7387\u4f4e)\u3002<br><code>EW\u6a21\u5f0f\u4e3b\u8981\u7528\u4e8e\u6cbf\u6d77\u76d1\u6d4b\uff0c\u5305\u62ec\u6d77\u8fd0\u76d1\u6d4b\u3001\u6ea2\u6cb9\u76d1\u6d4b\u548c\u6d77\u51b0\u76d1\u6d4b\u3002<\/code><\/li>\n\n\n\n<li>L0 RAW<\/li>\n\n\n\n<li>L1 SLC<\/li>\n\n\n\n<li>L1 GRD (High resolution, Medium resolution)<\/li>\n\n\n\n<li>WV(Wave):\u6570\u636e\u662f\u5728\u88ab\u79f0\u4e3a\u201c\u5c0f\u7247\u6bb5\u201d\u7684\u5c0f\u578b\u6761\u5f62\u5730\u56fe\u573a\u666f\u4e2d\u83b7\u53d6\u7684\uff0c\u8fd9\u4e9b\u573a\u666f\u5728\u8f68\u9053\u6cbf\u7ebf\u6bcf\u9694100\u516c\u91cc\u5b9a\u671f\u8bbe\u7f6e\u4e00\u6b21\u3002\u901a\u8fc7\u4ea4\u66ff\u83b7\u5f97\u5c0f\u70b9\uff0c\u4ee5\u8fd1\u8ddd\u79bb\u5165\u5c04\u89d2\u83b7\u5f97\u4e00\u4e2a\u5c0f\u70b9\uff0c\u800c\u4ee5\u8fdc\u8ddd\u79bb\u5165\u5c04\u89d2\u83b7\u5f97\u4e0b\u4e00\u4e2a\u5c0f\u70b9\u3002WV\u662f\u54e8\u51751\u53f7\u5728\u6d77\u4e0a\u7684\u64cd\u4f5c\u6a21\u5f0f\u3002\uff08\u8a00\u5916\u4e4b\u610f\u7528\u4e8e<code>\u6d77\u6d0b<\/code>\uff09\u3002<ul><li>L1 SLC<\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>L2 OCN (OSW RVL)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u6bcf\u4e00\u79cd\u6a21\u5f0f\uff0c\u90fd\u53ef\u4ee5\u751f\u4ea7SAR\u76840\u7ea7\u30011\u7ea7SLC\u30011\u7ea7GRD \u548c2\u7ea7OCN\u7684\u4ea7\u54c1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%93%A8%E5%85%B51%E5%8F%B7%E7%9A%84%E6%95%B0%E6%8D%AE%E4%BA%A7%E5%93%81\"><\/span>\u54e8\u51751\u53f7\u7684\u6570\u636e\u4ea7\u54c1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Raw Level-0 data \uff08\u7279\u5b9a\u60c5\u51b5\u4e0b\u4f7f\u7528\uff09<\/li>\n\n\n\n<li>SLC\uff08 Single Look Complex\uff09\uff1a\u5df2\u88ab\u5904\u7406\u540e\u7684\u4e00\u7ea7\u4ea7\u54c1\uff0c\u80fd\u83b7\u5f97\u76f8\u4f4d\u548c\u632f\u5e45\u4fe1\u606f\u3002\u76f8\u4f4d\u4fe1\u606f\u662f\u65f6\u95f4\u7684\u51fd\u6570\uff0c\u6839\u636e\u76f8\u4f4d\u4fe1\u606f\u548c\u901f\u5ea6\u53ef\u5b9e\u73b0\u8ddd\u79bb\u7684\u6d4b\u91cf\u3002\uff08\u53ef\u7528\u4e8e<code>\u6d4b\u8ddd<\/code>\u548c<code>\u5f62\u53d8\u89c2\u6d4b<\/code>\uff09\u3002<\/li>\n\n\n\n<li>GRD\uff08Ground Range Detected\uff09\uff1a\u4e00\u7ea7\u4ea7\u54c1\uff0c\u6709\u591a\u89c6\u5f3a\u5ea6\u6570\u636e\uff0c\u8be5\u5f3a\u5ea6\u6570\u636e\u4e0e\u540e\u5411\u6563\u5c04\u7cfb\u6570\u6709\u5173\u3002\uff08\u53ef\u7528\u4e8e<code>\u571f\u58e4\u6c34\u5206\u53cd\u6f14<\/code>\uff09\u3002<\/li>\n\n\n\n<li>OCN\uff08Ocean\uff09\uff1a\u7528\u4e8e\u68c0\u7d22\u6d77\u6d0b\u5730\u7403\u7269\u7406\u53c2\u6570\u3002\uff08\u5373\u5e94\u7528\u4e8e<code>\u6d77\u6d0b<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u6709\u7684\u4ea7\u54c1\u90fd\u662f\u4ece0\u7ea7\u4ea7\u54c1\u76f4\u63a5\u52a0\u5de5\u7684\u3002\u6bcf\u79cd\u6a21\u5f0f\u90fd\u53ef\u4ee5\u6f5c\u5728\u5730\u751f\u6210\u4e00\u7ea7SLC\u3001\u4e00\u7ea7GRD\u548c\u4e8c\u7ea7Ocean\u4ea7\u54c1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%BA%94%E7%94%A8\"><\/span>\u5e94\u7528<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d77\u4e0a\u76d1\u6d4b(Maritime monitoring)<\/li>\n\n\n\n<li>Land monitoring<\/li>\n\n\n\n<li>Energency management<\/li>\n\n\n\n<li>Mapping applications to sentinel-1 modes<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%9E%81%E5%8C%96%E6%96%B9%E5%BC%8F\"><\/span>\u6781\u5316\u65b9\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5355\u6781\u5316\u65b9\u5f0f\uff1a HH \u6216 VV<\/li>\n\n\n\n<li>\u53cc\u6781\u5316\u65b9\u5f0f\uff1a HH+HV \u6216 VV+VH<\/li>\n<\/ul>\n\n\n\n<p>WV\u626b\u63cf\u6a21\u5f0f\u53ea\u6709\u5355\u6781\u5316\u65b9\u5f0fHH\u6216VV\u3002\u5176\u4ed6\u626b\u63cf\u6a21\u5f0f\u5355\u6781\u5316\u65b9\u5f0f\uff08HH\u6216VV\uff09\u548c\u53cc\u6781\u5316\u65b9\u5f0f\uff08HH+HV\u6216VV+VH\uff09\u90fd\u6709\u3002<\/p>\n\n\n\n<p>IW\uff1a\u7528\uff08VV+VH\uff09\u6781\u5316\u65b9\u5f0f&#8211;&gt;\u89c2\u6d4b\u9646\u5730\uff1b<br>WV: \u7528VV\u6781\u5316\u65b9\u5f0f&#8211;&gt;\u89c2\u6d4b\u6d77\u6d0b.<\/p>\n\n\n\n<p>\u53c2\u8003\u6587\u732e\uff1a<a href=\"https:\/\/blog.csdn.net\/yuanqilian\/article\/details\/111868347\">\u585e\u7fc1\u7684\u8bfb\u4e66\u7b14\u8bb0<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%93%A8%E5%85%B51%E5%8F%B7%E5%88%86%E8%BE%A8%E7%8E%87\"><\/span>\u54e8\u51751\u53f7\u5206\u8fa8\u7387<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SLC 1\u7ea7\u4ea7\u54c1\u5206\u8fa8\u7387<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>mode<\/th><th>resolution(rgxaz)<\/th><th>pixel spacing(rgxaz)<\/th><th>number of looks<\/th><th>enl<\/th><\/tr><\/thead><tbody><tr><td>SM<\/td><td>1.7X4.3m to 3.6&#215;4.9m<\/td><td>1.5&#215;3.6m to 3.1&#215;4.1m<\/td><td>1&#215;1<\/td><td>1<\/td><\/tr><tr><td>IW<\/td><td>2.7x22m to 3.5x22m<\/td><td>2.3&#215;14.1m<\/td><td>1&#215;1<\/td><td>1<\/td><\/tr><tr><td>EW<\/td><td>7.9X43m to 15x43m<\/td><td>5.9&#215;19.9m<\/td><td>1&#215;1<\/td><td>1<\/td><\/tr><tr><td>WV<\/td><td>2.0X4.8m and 3.1&#215;4.8m<\/td><td>1.7&#215;4.1m and 2.7&#215;4.1m<\/td><td>1&#215;1<\/td><td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GRD 1\u7ea7\u4ea7\u54c1\u5206\u8fa8\u7387<\/li>\n<\/ul>\n\n\n\n<p>Full resolution level-1 GRD<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>mode<\/th><th>resolution(rgxaz)<\/th><th>pixel spacing(rgxaz)<\/th><th>number of looks<\/th><th>enl<\/th><\/tr><\/thead><tbody><tr><td>SM<\/td><td>9X9m<\/td><td>3.5&#215;3.5m<\/td><td>2&#215;2<\/td><td>3.7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>High resolution level-1 GRD<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>mode<\/th><th>resolution(rgxaz)<\/th><th>pixel spacing(rgxaz)<\/th><th>number of looks<\/th><th>enl<\/th><\/tr><\/thead><tbody><tr><td>SM<\/td><td>23X23m<\/td><td>10x10m<\/td><td>6&#215;6<\/td><td>29.7<\/td><\/tr><tr><td>IW<\/td><td>20X22m<\/td><td>10x10m<\/td><td>5&#215;1<\/td><td>4.4<\/td><\/tr><tr><td>EW<\/td><td>50x50m<\/td><td>25x25m<\/td><td>3&#215;1<\/td><td>2.7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Medium resolution level-1 GRD<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>mode<\/th><th>resolution(rgxaz)<\/th><th>pixel spacing(rgxaz)<\/th><th>number of looks<\/th><th>enl<\/th><\/tr><\/thead><tbody><tr><td>SM<\/td><td>84X84m<\/td><td>40mx40m<\/td><td>22&#215;22<\/td><td>398.4<\/td><\/tr><tr><td>IW<\/td><td>88X87m<\/td><td>40x40m<\/td><td>22&#215;5<\/td><td>81.8<\/td><\/tr><tr><td>EW<\/td><td>93x87m<\/td><td>40x40m<\/td><td>6&#215;2<\/td><td>10.7<\/td><\/tr><tr><td>WV<\/td><td>52x51m<\/td><td>25x25m<\/td><td>13&#215;13<\/td><td>123.7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2\u7ea7Ocean\u4ea7\u54c1<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"sentinelsat_%E6%89%B9%E9%87%8F%E4%B8%8B%E8%BD%BD\"><\/span>sentinelsat \u6279\u91cf\u4e0b\u8f7d<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u73af\u5883\u914d\u7f6e<br><code>conda create -n sentinelsat<\/code><br><code>source activate sentinelsat<\/code><br>\u5b89\u88c5 <code>sentinelsat<\/code> \u73af\u5883<br><code>pip install sentinelsat<\/code><\/li>\n\n\n\n<li>\u7b80\u5355\u7528\u6cd5<br><code>sentinelsat -u &lt;user&gt; -p &lt;password&gt; -g &lt;geojson&gt;<\/code><br>Search and download all Sentinel-1 scenes of type SLC, in descending orbit, for the year 2015.<br><code>sentinelsat -u &lt;user&gt; -p &lt;password&gt; -g &lt;search_polygon.geojson&gt; -s 20150101 -e 20151231 -d --producttype SLC -q \"orbitdirection=Descending\" --url \"https:\/\/apihub.copernicus.eu\/apihub\"<\/code><br>Username, password and DHuS URL can also be set via environment variables for convenience.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code># same result as query above\nexport DHUS_USER=\"&lt;user&gt;\"\nexport DHUS_PASSWORD=\"&lt;password&gt;\"\nexport DHUS_URL=\"https:\/\/apihub.copernicus.eu\/apihub\"\n\nsentinelsat -g &lt;search_polygon.geojson&gt; -s 20150101 -e 20151231 -d --producttype SLC -q \"orbitdirection=Descending\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>geojson<\/code> \u683c\u5f0f\u5236\u4f5c<br>\u521b\u5efa <code>shp<\/code> \u8f6c <code>geojson<\/code>\u683c\u5f0f\u8f6c\u6362\u73af\u5883<br><code>conda install gdal -y<\/code><br>\u8f6c\u6362\u793a\u4f8b<br><code>ogr2ogr -f 'GeoJSON' researchArea.json researchArea.shp<\/code><br>\u53c2\u8003\u6587\u732e\uff1a<a href=\"http:\/\/mars3d.cn\/dev\/guide\/data\/geojson.html#_1-shp%E6%A0%BC%E5%BC%8F%E4%BB%8B%E7%BB%8D\">mars3D\u5f00\u653e\u6559\u7a0b<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u54e8\u51752\u53f7 \u54e8\u5175 2 \u53f7\u5171\u6709 13&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":382,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[9],"class_list":["post-149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-6","tag-9"],"_links":{"self":[{"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/posts\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lxylp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=149"}],"version-history":[{"count":2,"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/posts\/149\/revisions"}],"predecessor-version":[{"id":483,"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/posts\/149\/revisions\/483"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lxylp.com\/index.php?rest_route=\/wp\/v2\/media\/382"}],"wp:attachment":[{"href":"https:\/\/lxylp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lxylp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lxylp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}