{"id":4171,"date":"2026-09-27T08:38:07","date_gmt":"2026-09-26T23:38:07","guid":{"rendered":"https:\/\/y42u.net\/tec001\/2026\/09\/27\/deepest-lake-bottom-below-sea-level-field\/"},"modified":"2026-09-27T08:38:07","modified_gmt":"2026-09-26T23:38:07","slug":"deepest-lake-bottom-below-sea-level-field","status":"publish","type":"post","link":"https:\/\/y42u.net\/tec001\/2026\/09\/27\/deepest-lake-bottom-below-sea-level-field\/","title":{"rendered":"\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u306e\u5e95\u306f\u3001\u6d77\u9762\u3088\u308a\u4f55\u30e1\u30fc\u30c8\u30eb\u4e0b\uff1f \u2014 \u7530\u6ca2\u6e56\u306e\u6c34\u6df1423.4m\u3092\u6a19\u9ad8\u306b\u76f4\u3059\u3068\u2212174m\u306b\u306a\u308b\u7406\u7531"},"content":{"rendered":"<style>img.autopost-single-image{width:30%;max-width:100%;height:auto;display:block;}@media (max-width: 768px){img.autopost-single-image{width:50%;}}<\/style>\n<p><img decoding=\"async\" style=\"width:80%;max-width:100%;height:auto;display:block;margin:0 auto;\" src=\"https:\/\/y42u.net\/tec001\/wp-content\/uploads\/2026\/09\/gde-deepest-lake-bottom-below-sea-level-field.jpeg\" alt=\"\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u306e\u5e95\u306f\u3001\u6d77\u9762\u3088\u308a\u4f55\u30e1\u30fc\u30c8\u30eb\u4e0b\uff1f \u2014 \u7530\u6ca2\u6e56\u306e\u6c34\u6df1423.4m\u3092\u6a19\u9ad8\u306b\u76f4\u3059\u3068\u2212174m\u306b\u306a\u308b\u7406\u7531\"><\/p>\n<h1 id=\"4234m174m\">\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u306e\u5e95\u306f\u3001\u6d77\u9762\u3088\u308a\u4f55\u30e1\u30fc\u30c8\u30eb\u4e0b\uff1f \u2014 \u7530\u6ca2\u6e56\u306e\u6c34\u6df1423.4m\u3092\u6a19\u9ad8\u306b\u76f4\u3059\u3068\u2212174m\u306b\u306a\u308b\u7406\u7531<\/h1>\n<p><strong>\u7d04174m\u4e0b\u3067\u3059\u3002<\/strong> \u79cb\u7530\u770c\u306e\u7530\u6ca2\u6e56\u306f\u6c34\u6df1423.4m\u3067\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u3067\u3059\u304c\u3001\u3053\u306e\u300c423.4m\u300d\u306f\u6e56\u9762\u304b\u3089\u306e\u6df1\u3055\u3067\u3001\u6a19\u9ad8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6e56\u9762\u306e\u6a19\u9ad8\u304c\u7d04249m\u306a\u306e\u3067\u3001\u5f15\u304d\u7b97\u3059\u308b\u3068\u6e56\u5e95\u306e\u6a19\u9ad8\u306f<strong>\u7d04\u2212174m<\/strong>\u3002\u65e5\u672c\u4e00\u4f4e\u3044\u9678\u5730\u3088\u308a\u3055\u3089\u306b170m\u307b\u3069\u4e0b\u306b\u3042\u308a\u307e\u3059\u3002\u6c34\u6df1\u3068\u6a19\u9ad8\u306f<strong>\u5225\u306e\u57fa\u6e96\u304b\u3089\u6570\u3048\u3066\u3044\u308b<\/strong>\u3068\u3044\u3046\u3001\u305d\u308c\u3060\u3051\u306e\u8a71\u3067\u3059\u3002<\/p>\n<hr \/>\n<h2 id=\"_1\">\u300c\u6c34\u6df1\u300d\u3068\u300c\u6a19\u9ad8\u300d\u306f\u3001\u3069\u3053\u304b\u3089\u6570\u3048\u3066\u3044\u308b\u304b<\/h2>\n<p>\u540c\u3058\u300c\u30e1\u30fc\u30c8\u30eb\u300d\u3067\u3082\u3001\u6570\u3048\u59cb\u3081\u308b\u9762\u304c\u9055\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u91cf<\/th>\n<th>\u57fa\u6e96\u306b\u306a\u308b\u9762<\/th>\n<th>\u5411\u304d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6a19\u9ad8<\/td>\n<td><strong>\u6771\u4eac\u6e7e\u5e73\u5747\u6d77\u9762\uff08T.P.\uff09\uff1d\u6a19\u9ad80m<\/strong><\/td>\n<td>\u4e0a\u3078\u30d7\u30e9\u30b9<\/td>\n<\/tr>\n<tr>\n<td>\u6e56\u306e\u6c34\u6df1<\/td>\n<td><strong>\u305d\u306e\u3068\u304d\u306e\u6e56\u9762<\/strong><\/td>\n<td>\u4e0b\u3078\u30d7\u30e9\u30b9<\/td>\n<\/tr>\n<tr>\n<td>\u6d77\u56f3\u306e\u6c34\u6df1<\/td>\n<td><strong>\u6700\u4f4e\u6c34\u9762<\/strong>\uff08\u7565\u6700\u4f4e\u4f4e\u6f6e\u9762\u3002\u6f6e\u4f4d\u304c\u307b\u307c\u3053\u308c\u4ee5\u4e0b\u306b\u306a\u3089\u306a\u3044\u9762\uff09<\/td>\n<td>\u4e0b\u3078\u30d7\u30e9\u30b9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3060\u304b\u3089\u300c\u6c34\u6df1423.4m\u300d\u3068\u300c\u6a19\u9ad8\u2212174m\u300d\u306f\u3001\u77db\u76fe\u3067\u3082\u8a00\u3044\u63db\u3048\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002<strong>\u540c\u30581\u70b9\u3092\u3001\u9055\u3046\u9762\u304b\u3089\u6e2c\u3063\u305f2\u3064\u306e\u6570\u5b57<\/strong>\u3067\u3059\u3002\u4e21\u65b9\u3092\u4e26\u3079\u305f\u3044\u3068\u304d\u306f\u3001\u5fc5\u305a\u4e00\u5ea6\u3069\u3061\u3089\u304b\u306e\u57fa\u6e96\u306b\u63c3\u3048\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" style=\"width:70%;max-width:100%;height:auto;display:block;margin:1em auto;\" src=\"https:\/\/y42u.net\/tec001\/wp-content\/uploads\/2026\/09\/gde-fig-height-triangle.jpeg\" alt=\"\u5730\u8868\u30fb\u30b8\u30aa\u30a4\u30c9\u30fb\u6955\u5186\u4f53\u306e3\u5c64\u3068\u3001\u6a19\u9ad8\u30fb\u6955\u5186\u4f53\u9ad8\u30fb\u30b8\u30aa\u30a4\u30c9\u9ad8\u306e\u95a2\u4fc2\u3092\u793a\u3057\u305f\u56f3\"><\/p>\n<hr \/>\n<h2 id=\"_2\">\u7530\u6ca2\u6e56\u3067\u5b9f\u969b\u306b\u8a08\u7b97\u3059\u308b<\/h2>\n<p>\u5fc5\u8981\u306a\u306e\u306f2\u3064\u306e\u6570\u5b57\u3060\u3051\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5024<\/th>\n<th>\u6570\u5b57<\/th>\n<th>\u51fa\u3069\u3053\u308d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6700\u5927\u6c34\u6df1<\/td>\n<td><strong>423.4m<\/strong><\/td>\n<td>\u4ed9\u5317\u5e02\uff08\u7530\u6ca2\u6e56 \u89b3\u5149\u60c5\u5831\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6e56\u9762\u306e\u6a19\u9ad8<\/td>\n<td><strong>\u7d04249m<\/strong><\/td>\n<td>\u56fd\u571f\u5730\u7406\u9662\u306e\u6a19\u9ad8API\uff0810m\u30e1\u30c3\u30b7\u30e5DEM\u30fb2026\u5e749\u6708\u6642\u70b9\u306b\u6e56\u5fc3\u4ed8\u8fd1\u3067\u7167\u4f1a\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6e56\u5e95\u306e\u6a19\u9ad8<\/strong><\/td>\n<td><strong>\u7d04\u2212174.4m<\/strong><\/td>\n<td>249 \u2212 423.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5f15\u304d\u7b971\u56de\u3067\u3059\u3002\u3053\u3053\u3067\u51fa\u305f<strong>\u2212174.4m<\/strong>\u304c\u3001\u300c\u6e56\u5e95\u306f\u6d77\u9762\u3088\u308a\u3069\u308c\u3060\u3051\u4e0b\u304b\u300d\u3068\u3044\u3046\u554f\u3044\u3078\u306e\u7b54\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6bd4\u8f03\u3059\u308b\u3068\u3001\u3053\u306e\u6570\u5b57\u306e\u5927\u304d\u3055\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5730\u70b9<\/th>\n<th>\u6a19\u9ad8<\/th>\n<th>\u78ba\u304b\u3081\u65b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6771\u4eac\u6e7e\u5e73\u5747\u6d77\u9762<\/td>\n<td>0m<\/td>\n<td>\u6a19\u9ad8\u306e\u57fa\u6e96\u305d\u306e\u3082\u306e<\/td>\n<\/tr>\n<tr>\n<td>\u516b\u90ce\u6f5f\u5e72\u62d3\u5730\uff08\u79cb\u7530\u770c\u5927\u6f5f\u6751\uff09\u306e\u5730\u8868<\/td>\n<td><strong>\u7d04\u22123.7m<\/strong><\/td>\n<td>\u540c\u3058\u6a19\u9ad8API\uff085m\u30e1\u30c3\u30b7\u30e5\u30fb\u30ec\u30fc\u30b6\u6e2c\u91cf\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7530\u6ca2\u6e56\u306e\u6e56\u5e95<\/strong><\/td>\n<td><strong>\u7d04\u2212174.4m<\/strong><\/td>\n<td>249 \u2212 423.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5927\u6f5f\u6751\u306f\u300c\u65e5\u672c\u3067\u6700\u3082\u4f4e\u3044\u5e73\u5730\u300d\u3068\u3057\u3066\u3088\u304f\u7d39\u4ecb\u3055\u308c\u307e\u3059\u304c\u3001\u3042\u304f\u307e\u3067<strong>\u4eba\u304c\u7acb\u3066\u308b\u9678\u5730<\/strong>\u306e\u8a71\u3067\u3059\u3002\u6c34\u306e\u4e0b\u307e\u3067\u542b\u3081\u308c\u3070\u3001\u7530\u6ca2\u6e56\u306e\u6e56\u5e95\u306f\u305d\u306e<strong>\u7d0447\u500d\u6df1\u3044<\/strong>\u4f4d\u7f6e\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<hr \/>\n<h2 id=\"_3\">\u6e56\u9762\u306e\u6a19\u9ad8\u306f\u3001\u3044\u3064\u306e\u6e56\u9762\u304b<\/h2>\n<p>\u3053\u306e\u8a08\u7b97\u306b\u306f\u3072\u3068\u3064\u5f31\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u6e56\u9762\u306f\u52d5\u304f<\/strong>\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u6a19\u9ad8API\u304c\u8fd4\u3059249m\u306f\u3001<strong>DEM\u3092\u4f5c\u3063\u305f\u6642\u70b9\u306e\u6c34\u9762\u306e\u9ad8\u3055<\/strong>\u3067\u3059\u3002\u6570\u5024\u6a19\u9ad8\u30e2\u30c7\u30eb\u306f\u6c34\u9762\u3092\u300c\u5730\u9762\u300d\u3068\u3057\u3066\u8a18\u9332\u3059\u308b\u306e\u3067\u3001\u6c34\u57df\u3067\u306f\u6c34\u4f4d\u304c\u5024\u306b\u306a\u308a\u307e\u3059<\/li>\n<li>\u6e56\u306e\u6c34\u4f4d\u306f\u964d\u6c34\u30fb\u878d\u96ea\u30fb\u6d41\u5165\u3068\u3001\u5229\u6c34\u3084\u767a\u96fb\u306e\u305f\u3081\u306e\u653e\u6d41\u3067\u5909\u308f\u308a\u307e\u3059\u3002\u7530\u6ca2\u6e56\u306e\u3088\u3046\u306b\u5229\u6c34\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u6e56\u3067\u306f\u3001\u5b63\u7bc0\u306b\u3088\u308b\u4e0a\u4e0b\u304c\u3042\u308a\u307e\u3059<\/li>\n<li>\u3057\u305f\u304c\u3063\u3066\u300c\u6e56\u5e95\u6a19\u9ad8\uff1d\u2212174.4m\u300d\u306f<strong>\u30e1\u30fc\u30c8\u30eb\u5358\u4f4d\u306e\u4e38\u3081\u306e\u8a71<\/strong>\u3067\u3001\u5c0f\u6570\u7b2c1\u4f4d\u3092\u56fa\u5b9a\u5024\u3068\u3057\u3066\u6271\u3046\u6570\u5b57\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/li>\n<\/ul>\n<p>\u3053\u3053\u304c\u3001\u73fe\u5834\u3067\u9ad8\u3055\u3092\u6271\u3046\u3068\u304d\u306e\u611f\u899a\u3068\u540c\u3058\u3067\u3059\u3002<strong>\u57fa\u6e96\u9762\u304c\u3069\u3053\u306b\u3042\u308b\u304b<\/strong>\u3092\u66f8\u304b\u306a\u3044\u9ad8\u3055\u306f\u3001\u3042\u3068\u304b\u3089\u691c\u7b97\u3067\u304d\u307e\u305b\u3093\u3002\u300c\u6e56\u9762\u304b\u3089423.4m\u4e0b\u300d\u306a\u3089\u57fa\u6e96\u304c\u6e56\u9762\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u518d\u73fe\u3067\u304d\u307e\u3059\u304c\u3001\u300c\u2212174m\u300d\u3068\u66f8\u304f\u3060\u3051\u3067\u306f\u3001\u3069\u306e\u6642\u70b9\u306e\u6e56\u9762\u3092\u5f15\u3044\u305f\u306e\u304b\u304c\u6b8b\u308a\u307e\u305b\u3093\u3002<\/p>\n<hr \/>\n<h2 id=\"_4\">\u6c34\u6df1\u306f\u3069\u3046\u6e2c\u3063\u3066\u3044\u308b\u306e\u304b<\/h2>\n<p>\u6e56\u5e95\u306e\u5f62\u306f\u3001\u8239\u304b\u3089\u97f3\u3067\u6e2c\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u8239\u5e95\u306e\u9001\u53d7\u6ce2\u5668\u304b\u3089\u97f3\u6ce2\u3092\u51fa\u3057\u3001\u6e56\u5e95\u3067\u53cd\u5c04\u3057\u3066\u623b\u308b\u6642\u9593\u3092\u6e2c\u308b\uff08<strong>\u97f3\u97ff\u6e2c\u6df1<\/strong>\uff09<\/li>\n<li>\u5f80\u5fa9\u6642\u9593 \u00d7 \u6c34\u4e2d\u97f3\u901f \u00f7 2 \u3067\u3001\u305d\u306e\u70b9\u306e\u6c34\u6df1\u304c\u51fa\u308b<\/li>\n<li>\u540c\u6642\u306bGNSS\u3067\u8239\u306e\u4f4d\u7f6e\u3092\u6e2c\u308a\u3001\u300c\u4f4d\u7f6e\uff0b\u6c34\u6df1\u300d\u306e\u70b9\u7fa4\u306b\u3059\u308b<\/li>\n<li>\u6e2c\u3063\u305f\u3068\u304d\u306e\u6c34\u4f4d\u3092\u8a18\u9332\u3057\u3001\u57fa\u6e96\u9762\uff08\u6e56\u9762\u57fa\u6e96\u306a\u3089\u57fa\u6e96\u6c34\u4f4d\u3001\u6a19\u9ad8\u306b\u3059\u308b\u306a\u3089 T.P.\uff09\u3078\u88dc\u6b63\u3059\u308b<\/li>\n<\/ol>\n<p><strong>4\u756a\u76ee\u304c\u3001\u3053\u306e\u8a18\u4e8b\u306e\u4e3b\u984c\u305d\u306e\u3082\u306e<\/strong>\u3067\u3059\u3002\u6e2c\u3063\u3066\u3044\u308b\u306e\u306f\u8239\u306e\u4e0b\u306e\u8ddd\u96e2\u3060\u3051\u306a\u306e\u3067\u3001\u6c34\u4f4d\u3092\u8a18\u9332\u3057\u3066\u304a\u304b\u306a\u3044\u3068\u6a19\u9ad8\u306b\u76f4\u305b\u307e\u305b\u3093\u3002\u6d77\u306e\u6e2c\u91cf\u3067\u6f6e\u4f4d\u88dc\u6b63\u304c\u5fc5\u9808\u306a\u306e\u3068\u540c\u3058\u7406\u7531\u3067\u3059\u3002<\/p>\n<p>\u6c34\u4e2d\u97f3\u901f\u306f\u6c34\u6e29\u30fb\u5869\u5206\uff08\u6e56\u3067\u306f\u4e3b\u306b\u6c34\u6e29\uff09\u3067\u5909\u308f\u308b\u305f\u3081\u3001\u5b9f\u52d9\u3067\u306f\u97f3\u901f\u306e\u5b9f\u6e2c\u307e\u305f\u306f\u88dc\u6b63\u3092\u884c\u3044\u307e\u3059\u3002\u6df1\u3044\u6e56\u3067\u306f\u8868\u5c64\u3068\u6df1\u5c64\u306e\u6c34\u6e29\u5dee\u304c\u52b9\u304f\u306e\u3067\u3001<strong>\u5358\u7d14\u306a\u5f80\u5fa9\u6642\u9593\u306e\u5272\u308a\u7b97\u3060\u3051\u3067\u306f\u6df1\u3055\u304c\u5408\u3044\u307e\u305b\u3093<\/strong>\u3002<\/p>\n<hr \/>\n<h2 id=\"rtk\">RTK\u3067\u6e56\u5e95\u306e\u5ea7\u6a19\u306f\u51fa\u305b\u306a\u3044<\/h2>\n<p>GNSS\u306e\u96fb\u6ce2\u306f\u6c34\u4e2d\u3092\u307b\u3068\u3093\u3069\u901a\u308a\u307e\u305b\u3093\u3002\u3067\u3059\u304b\u3089\u73fe\u5834\u3067\u306f\u3001\u3053\u3046\u5206\u62c5\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6e2c\u308b\u3082\u306e<\/th>\n<th>\u624b\u6bb5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8239\uff08\u6c34\u9762\uff09\u306e\u6c34\u5e73\u4f4d\u7f6e<\/td>\n<td>RTK-GNSS\uff0f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u578bRTK<\/td>\n<\/tr>\n<tr>\n<td>\u8239\uff08\u6c34\u9762\uff09\u306e\u9ad8\u3055<\/td>\n<td>RTK-GNSS\u306e\u6955\u5186\u4f53\u9ad8 \u2212 \u30b8\u30aa\u30a4\u30c9\u9ad8 \u2192 \u6a19\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u8239\u306e\u4e0b\u306e\u6c34\u6df1<\/td>\n<td>\u97f3\u97ff\u6e2c\u6df1<\/td>\n<\/tr>\n<tr>\n<td>\u6e56\u5e95\u306e\u6a19\u9ad8<\/td>\n<td>\u4e0a\u306e\u300c\u6c34\u9762\u306e\u6a19\u9ad8\u300d\u304b\u3089\u300c\u6c34\u6df1\u300d\u3092\u5f15\u304f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u6c34\u9762\u307e\u3067\u306fGNSS\u3001\u305d\u3053\u304b\u3089\u4e0b\u306f\u97f3<\/strong>\u3002\u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u3001\u6c34\u57df\u306e\u5730\u5f62\u3092\u6e2c\u308b\u57fa\u672c\u5f62\u3067\u3059\u3002\u6d77\u5e95\u306e\u57fa\u6e96\u70b9\u3092\u6e2c\u308b\u6d77\u5e95\u5730\u6bbb\u5909\u52d5\u89b3\u6e2c\u3082\u3001\u539f\u7406\u306f\u540c\u3058\u300c\u96fb\u6ce2\uff0b\u97f3\u6ce2\u300d\u306e\u4e8c\u6bb5\u69cb\u3048\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>RTK\u3067\u6c34\u9762\u306e\u9ad8\u3055\u3092\u51fa\u3059\u5834\u5408\u3001\u6955\u5186\u4f53\u9ad8\u304b\u3089\u30b8\u30aa\u30a4\u30c9\u9ad8\u3092\u5f15\u3044\u3066\u6a19\u9ad8\u306b\u3059\u308b\u624b\u9806\u304c\u5fc5\u305a\u5165\u308a\u307e\u3059\u3002\u3053\u3053\u3092\u98db\u3070\u3059\u3068\u3001\u65e5\u672c\u4ed8\u8fd1\u3067\u306f\u6570\u5341m\u306e\u98df\u3044\u9055\u3044\u304c\u51fa\u307e\u3059\u3002\u6c34\u6df1423m\u306e\u6e56\u306730m\u9593\u9055\u3048\u308c\u3070\u3001\u6e56\u5e95\u6a19\u9ad8\u306e\u8b70\u8ad6\u306f\u6210\u308a\u7acb\u3061\u307e\u305b\u3093\u3002<\/p>\n<hr \/>\n<h2 id=\"_5\">\u307e\u3068\u3081<\/h2>\n<ul>\n<li>\u7530\u6ca2\u6e56\u306e<strong>\u6c34\u6df1423.4m<\/strong>\u306f\u6e56\u9762\u304b\u3089\u306e\u6df1\u3055\u3002\u6a19\u9ad8\u3067\u306f\u306a\u3044<\/li>\n<li>\u6e56\u9762\u306e\u6a19\u9ad8\u306f<strong>\u7d04249m<\/strong>\uff08\u56fd\u571f\u5730\u7406\u9662\u306e\u6a19\u9ad8API\u30fb2026\u5e749\u6708\u6642\u70b9\uff09\u3002\u5f15\u304d\u7b97\u3057\u3066<strong>\u6e56\u5e95\u306f\u7d04\u2212174m<\/strong><\/li>\n<li>\u65e5\u672c\u3067\u6700\u3082\u4f4e\u3044\u5e73\u5730\uff08\u516b\u90ce\u6f5f\u5e72\u62d3\u5730\u30fb\u7d04\u22123.7m\uff09\u3088\u308a\u3055\u3089\u306b170m\u307b\u3069\u4e0b<\/li>\n<li>\u6c34\u6df1\u306f\u6e56\u9762\u57fa\u6e96\u3001\u6a19\u9ad8\u306f\u6771\u4eac\u6e7e\u5e73\u5747\u6d77\u9762\u57fa\u6e96\u3001\u6d77\u56f3\u306e\u6c34\u6df1\u306f\u6700\u4f4e\u6c34\u9762\u57fa\u6e96\u3002<strong>\u57fa\u6e96\u9762\u3092\u66f8\u304b\u306a\u3044\u9ad8\u3055\u306f\u691c\u7b97\u3067\u304d\u306a\u3044<\/strong><\/li>\n<li>\u6c34\u57df\u306f\u300c\u6c34\u9762\uff1dGNSS\u300d\u300c\u6c34\u9762\u3088\u308a\u4e0b\uff1d\u97f3\u97ff\u6e2c\u6df1\u300d\u3067\u5206\u62c5\u3059\u308b\u3002\u6c34\u4f4d\u306e\u8a18\u9332\u304c\u4e21\u8005\u3092\u3064\u306a\u3050<\/li>\n<\/ul>\n<blockquote><p>\n\u672c\u8a18\u4e8b\u306e\u6e56\u5e95\u6a19\u9ad8\u306f\u3001\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u6700\u5927\u6c34\u6df1\u3068\u6a19\u9ad8API\u306e\u7167\u4f1a\u5024\u304b\u3089\u7b97\u51fa\u3057\u305f<strong>\u53c2\u8003\u5024<\/strong>\u3067\u3059\u3002\u6e56\u9762\u6a19\u9ad8\u306fDEM\u4f5c\u6210\u6642\u70b9\u306e\u6c34\u9762\u306e\u9ad8\u3055\u3067\u3042\u308a\u3001\u5b9f\u969b\u306e\u6c34\u4f4d\u306f\u5909\u52d5\u3057\u307e\u3059\u3002\u5c0f\u6570\u7b2c1\u4f4d\u307e\u3067\u56fa\u5b9a\u3057\u305f\u5024\u3068\u3057\u3066\u6271\u308f\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\n<\/p><\/blockquote>\n<h3 id=\"_6\">\u51fa\u5178<\/h3>\n<ul>\n<li>\u4ed9\u5317\u5e02\u300c\u7530\u6ca2\u6e56\u3000\u89b3\u5149\u60c5\u5831\u300d\uff08\u6c34\u6df1423.4\u30e1\u30fc\u30c8\u30eb\u30fb\u65e5\u672c\u4e00\u306e\u6df1\u3055\uff09 https:\/\/www.city.semboku.akita.jp\/sightseeing\/spot\/04_tazawako.html<\/li>\n<li>\u56fd\u571f\u5730\u7406\u9662\u300c\u6a19\u9ad8API\u300d https:\/\/maps.gsi.go.jp\/development\/elevation_s.html<\/li>\n<li>\u56fd\u571f\u5730\u7406\u9662\u300c\u57fa\u76e4\u5730\u56f3\u60c5\u5831\u3000\u6570\u5024\u6a19\u9ad8\u30e2\u30c7\u30eb\u300d https:\/\/www.gsi.go.jp\/kiban\/<\/li>\n<li>\u56fd\u571f\u5730\u7406\u9662\u300c\u65e5\u672c\u306e\u6e2c\u5730\u7cfb\u300d\uff08\u6771\u4eac\u6e7e\u5e73\u5747\u6d77\u9762\u3068\u6a19\u9ad8\u306e\u57fa\u6e96\uff09 https:\/\/www.gsi.go.jp\/sokuchikijun\/datum-main.html<\/li>\n<li>\u6d77\u4e0a\u4fdd\u5b89\u5e81\u300c\u5e73\u5747\u6c34\u9762\u3001\u6700\u9ad8\u6c34\u9762\u53ca\u3073\u6700\u4f4e\u6c34\u9762\u306e\u9ad8\u3055\u300d\uff08\u6d77\u56f3\u306e\u6c34\u6df1\u306e\u57fa\u6e96\u9762\uff09 https:\/\/www1.kaiho.mlit.go.jp\/TIDE\/datum\/<\/li>\n<\/ul>\n<hr \/>\n<h2 id=\"_7\">\u6b21\u306b\u78ba\u8a8d\u3059\u308b<\/h2>\n<ul>\n<li><a href=\"https:\/\/y42u.net\/tec001\/2026\/08\/30\/japans-lowest-mountain-elevation-field\/\">\u65e5\u672c\u4e00\u4f4e\u3044\u5c71\u306f\u3069\u308c\uff1f<\/a> \u2014 \u300c\u6a19\u9ad8\u3067\u65e5\u672c\u4e00\u300d\u3092\u6c7a\u3081\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u3069\u3053\u304b\u3089\u3069\u3053\u307e\u3067\u3092\u6e2c\u308b\u304b\u3067\u7b54\u3048\u304c\u5909\u308f\u308b\u8a71\u3067\u3059<\/li>\n<li><a href=\"https:\/\/y42u.net\/tec001\/2026\/09\/18\/lake-biwa-migration-water-level-field\/\">\u7435\u7436\u6e56\u306f\u52d5\u3044\u3066\u3044\u308b\uff1f<\/a> \u2014 \u540c\u3058\u6e56\u3067\u3082\u3001\u6c34\u4f4d\u3068\u6e56\u305d\u306e\u3082\u306e\u306e\u4f4d\u7f6e\u304c\u3069\u3061\u3089\u3082\u6642\u9593\u3067\u5909\u308f\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059<\/li>\n<li><a href=\"https:\/\/y42u.net\/tec001\/2026\/09\/07\/seafloor-geodesy-gnss-acoustic-field\/\">\u6d77\u5e95\u306e\u57fa\u6e96\u70b9\u306f\u3069\u3046\u6e2c\u308b\u306e\u304b<\/a> \u2014 \u672c\u8a18\u4e8b\u306e\u300c\u96fb\u6ce2\uff0b\u97f3\u6ce2\u300d\u306e\u4e8c\u6bb5\u69cb\u3048\u3092\u3001\u6d77\u5e95\u3067 cm \u7d1a\u307e\u3067\u3084\u3063\u3066\u3044\u308b\u4f8b\u3067\u3059<\/li>\n<li><a href=\"https:\/\/y42u.net\/tec001\/2026\/06\/29\/rtk-ellipsoidal-orthometric-height-field\/\">RTK\u3067\u51fa\u308b\u300c\u9ad8\u3055\u300d\u306f\u6a19\u9ad8\u3067\u306f\u306a\u3044<\/a> \u2014 \u6c34\u9762\u306e\u6a19\u9ad8\u3092\u51fa\u3059\u3068\u304d\u306b\u5fc5\u305a\u901a\u308b\u30b8\u30aa\u30a4\u30c9\u9ad8\u306e\u5f15\u304d\u7b97\u3067\u3059<\/li>\n<li><a href=\"https:\/\/gmp.y42u.net\/2026\/07\/16\/sea-level-vs-elevation\/\">\u300c\u6d77\u9762\u304b\u3089\u306e\u9ad8\u3055\u300d\u306e\u6d77\u9762\u3068\u306f\u3069\u306e\u6d77\u9762\u304b\uff08GeoPrism JP\uff09<\/a> \u2014 \u6a19\u9ad80m\u306e\u6c7a\u3081\u65b9\u3092\u56f3\u3067\u78ba\u304b\u3081\u3089\u308c\u307e\u3059<\/li>\n<li>\u66f8\u7c4d\u3067\u307e\u3068\u3081\u3066\u5b66\u3076: <a href=\"https:\/\/www.amazon.co.jp\/dp\/B0HF4SJC1L\">\u300e\u65e5\u672c\u306e\u6e2c\u5730\u7cfbQ&amp;A\u300f\u7b2c8\u7ae0\u300c\u6a19\u9ad8\u30fb\u30b8\u30aa\u30a4\u30c9\u30fb\u6d77\u9762\u300d<\/a>\uff08Kindle Unlimited\u5bfe\u5fdc\uff09<\/li>\n<\/ul>\n<hr \/>\n<blockquote><p>\n<strong>\u958b\u767a\u8005\u3088\u308a<\/strong>: \u30a2\u30d7\u30ea\u30fbKindle\u672c\u30fb\u516c\u958b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4e00\u89a7\u306f <a href=\"https:\/\/github.com\/amru195704\">GitHub: amru195704<\/a> \u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002\n<\/p><\/blockquote>\n<hr \/>\n<blockquote><p>\n<strong>\u304a\u9858\u3044<\/strong><br \/>\n\u672c\u8a18\u4e8b\u306e\u60c5\u5831\u306f\u53c2\u8003\u76ee\u7684\u3067\u63b2\u8f09\u3057\u3066\u304a\u308a\u3001\u6b63\u78ba\u6027\u30fb\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8aa4\u8a18\u30fb\u4e0d\u6b63\u78ba\u306a\u60c5\u5831\u304c\u3054\u3056\u3044\u307e\u3057\u305f\u3089\u3001\u30b3\u30e1\u30f3\u30c8\u6b04\u3088\u308a\u3054\u6307\u6458\u3044\u305f\u3060\u3051\u308c\u3070\u3001\u78ba\u8a8d\u306e\u3046\u3048\u4fee\u6b63\u3044\u305f\u3057\u307e\u3059\u3002\n<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u306e\u5e95\u306f\u3001\u6d77\u9762\u3088\u308a\u4f55\u30e1\u30fc\u30c8\u30eb\u4e0b\uff1f \u2014 \u7530\u6ca2\u6e56\u306e\u6c34\u6df1423.4m\u3092\u6a19\u9ad8\u306b\u76f4\u3059\u3068\u2212174m\u306b\u306a\u308b\u7406\u7531 \u7d04174m\u4e0b\u3067\u3059\u3002 \u79cb\u7530\u770c\u306e\u7530\u6ca2\u6e56\u306f\u6c34\u6df1423.4m\u3067\u65e5\u672c\u4e00\u6df1\u3044\u6e56\u3067\u3059\u304c\u3001\u3053\u306e\u300c423.4m\u300d\u306f\u6e56\u9762\u304b\u3089\u306e\u6df1\u3055\u3067 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4170,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","_veu_custom_css":"","veu_display_promotion_alert":"","vkexunit_cta_each_option":"","_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[608,17,605,33,448,237,607,604,603,606],"class_list":["post-4171","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-dem","tag-geodiveexa","tag-605","tag-33","tag-448","tag-237","tag-api","tag-604","tag-603","tag-606"],"veu_head_title_object":{"title":"","add_site_title":""},"jetpack_publicize_connections":[],"jetpack-related-posts":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/y42u.net\/tec001\/wp-content\/uploads\/2026\/09\/gde-deepest-lake-bottom-below-sea-level-field.jpeg","_links":{"self":[{"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/posts\/4171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/comments?post=4171"}],"version-history":[{"count":0,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/posts\/4171\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/media\/4170"}],"wp:attachment":[{"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/media?parent=4171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/categories?post=4171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/y42u.net\/tec001\/wp-json\/wp\/v2\/tags?post=4171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}