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[1] [DFN[日本の領土]]やその他[[日本]]に属する[[領域][国の領域]]はたくさんあります。

* 日本の領土

[11] 
[FIG(short list)[
- [[都道府県]]
- [[令制国]]
- [[北海道]]
- [[本州]]
- [[四国]]
- [[九州]]
- [[南西諸島]]
-- [[沖縄]]
- [[伊豆諸島]]
- [[小笠原諸島]]
-- [[沖ノ鳥島]]
-- [[南鳥島]]

[HISTORY[
- [[五畿七道]]
- [[外地]]
- [[日本領になっていたかもしれない地域]]
- [[バシー海峡]]

]HISTORY]
]FIG]

[17] 
主たる島々は[[日本列島]]に属しています。

** 未回収地域

[FIG(short list)[ [2] [DFN[未回収の日本]]
- [[樺太島]]
-- [[北樺太]]
-- [[南樺太]]
- [[千島列島]]
- [[北方四島]]
- [[竹島]]
- [[在日米軍基地]]
-- [[日米地位協定]]
-- [[横田空域]]
]FIG]

[3] 関連: [[分断国家]]

* 日本の海域

[4] [CITE[海しる / MSIL]], [TIME[2024-10-09T08:54:42.000Z]], [TIME[2024-10-17T06:51:11.274Z]] <https://www.msil.go.jp/msil/htm/topwindow.html>

[5] >>3 [[直線基線]]と[[領海外縁線]]の表示がありますが、
生座標データはなく[[タイル画像]]データだけです ([[政府標準利用規約]])。
[TIME[2024-10-17T06:53:01.00Z]]

* 実在しない地域

[15] 
[FIG(short list)[
- [[中ノ鳥島]]
- [[第三新東京市]]
- [[絃神島]]
- [[ブルーアイランド]]
- [[オーシャンモール四国沖店]]
]FIG]

* メモ

[6] 
日本の陸域を大雑把に囲む多角形 ([[領土]]はすべて含み、[[領海]]も概ね含むが不正確、
[[200海里水域]]はそれなりに含む)

[PRE[
    {"lat":35.262290171262606,"lon":129.52549541458012},
    {"lat":33.63563443112933,"lon":128.11152711598143},
    {"lat":27.350347623784252,"lon":122.69130149811586},
    {"lat":22.818018713458926,"lon":122.42140894091759},
    {"lat":21.46928247377045,"lon":125.74416177967775},
    {"lat":22.451602587213536,"lon":127.43306430310153},
    {"lat":19.910331362180518,"lon":132.72485690436136},
    {"lat":17.550912179219264,"lon":133.21061202970304},
    {"lat":16.53723722190111,"lon":138.13503721601717},
    {"lat":20.22565975490805,"lon":140.48645650704304},
    {"lat":24.577877843701554,"lon":146.08591144544644},
    {"lat":18.180686409947512,"lon":155.28310995076697},
    {"lat":23.502592722918372,"lon":160.08685089215786},
    {"lat":49.547861062839964,"lon":159.3554522102241},
    {"lat":56.39427546745975,"lon":144.1097173256088},
    {"lat":54.936641506776475,"lon":141.51017029606572},
    {"lat":52.18604106241055,"lon":141.58175707690273},
    {"lat":49.968503479436386,"lon":141.37523485646417},
    {"lat":45.97493268294697,"lon":140.02162914620013},
    {"lat":40.57302091108701,"lon":135.0996451677164},
    {"lat":39.391052033518854,"lon":131.81659632507836},
    {"lat":35.721172006694296,"lon":130.9465206056198},
    {"lat":35.262290171262606,"lon":129.52549541458012},
]PRE]

[8] >>6 から[[国土地理院]]の詳細なタイル画像がない地域を除去したもの。

[PRE[
    {"lat":35.262290171262606,"lon":129.52549541458012},
    {"lat":33.63563443112933,"lon":128.11152711598143},
    {"lat":27.350347623784252,"lon":122.69130149811586},
    {"lat":22.818018713458926,"lon":122.42140894091759},
    {"lat":21.46928247377045,"lon":125.74416177967775},
    {"lat":22.451602587213536,"lon":127.43306430310153},
    {"lat":19.910331362180518,"lon":132.72485690436136},
    {"lat":17.550912179219264,"lon":133.21061202970304},
    {"lat":16.53723722190111,"lon":138.13503721601717},
    {"lat":20.22565975490805,"lon":140.48645650704304},
    {"lat":24.577877843701554,"lon":146.08591144544644},
    {"lat":18.180686409947512,"lon":155.28310995076697},
    {"lat":46.7195903678211,"lon":148.71198705249572},
    {"lat":45.31730227791727,"lon":145.14328950844268},
    {"lat":45.97493268294697,"lon":140.02162914620013},
    {"lat":40.57302091108701,"lon":135.0996451677164},
    {"lat":39.391052033518854,"lon":131.81659632507836},
    {"lat":35.721172006694296,"lon":130.9465206056198},
    {"lat":35.262290171262606,"lon":129.52549541458012},
]PRE]

[7] こういうもっと正確なポリゴンデータ、どっかに落ちてそうなのに探しても見つからなかった。

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