国立情報学研究所 - ディジタル・シルクロード・プロジェクト
『東洋文庫所蔵』貴重書デジタルアーカイブ
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カラー画像サムネイル -
目次 -
ページ番号 -
書誌情報（メタデータ） -
キャプション -
カラー画像 -
白黒高解像度画像 -
見開きページ -
グラフィック -
| 0869 |
Southern Tibet : vol.7 |
| 南チベット : vol.7 |
引用情報
OCR読み取り結果
CHAPTER LXIV.
TRIGONOMETRICAL MEASUREMENTS OF SOME HIGH
PEAKS IN THE TRANSHIMALAYA.
During my last journey in Tibet I measured the altitude of 20 peaks, all,
with the exception of three that belong to the Kubi-gangri, situated in the Trans-
himalayan system. The measurements were carried out with the same theodolite
which I used for the astronomical observations.
Professor Karl D. P. ROSÉN has been kind enough to examine my observations,
and to calculate the altitudes from the collected data.
The distances from the different stations to the objects were determined by
Colonel H. BYSTRÖM from his map in 1 : 200000. My bearings to the peaks were
entered on this map, and the situation of the different objects was found by the inter-
section of the bearings. Pl. CII shows the procedure followed in the case of the
peaks A, B, C, and D of Targo-gangri. The scale is 1 : 200000, and the diagram
can therefore be directly compared with the map. △ 150, 151 etc. are camps; ⊙ P
are points from which panoramas with compass bearings were sketched. Determining
the situation of peak A Colonel Byström has chiefly made use of the nearest stations.
In the triangle of error marked with thick lines which was obtained by the inter-
sections of these bearings, the point of intersection of the diagonals was fixed, and
this point was also found to be cut by the bearing taken from a station halfway
between Camps 151 and 152 which was situated at a short distance from the object.
The 72 km. long bearing from Angden-la also cuts the same point of intersection,
which must be regarded as rather accidental, as the other long bearings fall more
or less outside of the triangle. The determination of the location of the other three
peaks, B, C, and D, does not demand any further explanation, as the procedure is
clearly visible from the diagram.
Pl. CIII shows the same procedure in the case of the five peaks, M, L, K, J
and J₁ of Lunpo-gangri and of the »White Cupola» north of it. Determining the
location of the last-mentioned peak, Colonel Byström has altogether rejected the two
easternmost long bearings. It is true that the four bearings from the south meet
1
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17
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28
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38
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49
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60
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70
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81
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92
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105
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117
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128
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138
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150
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161
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177
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190
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202
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214
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225
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237
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251
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263
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277
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291
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302
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315
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329
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342
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352
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363
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375
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386
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397
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407
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420
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432
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444
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457
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467
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478
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488
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499
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510
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520
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530
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541
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552
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563
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573
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583
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593
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605
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615
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625
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635
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646
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656
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666
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681
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693
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704
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714
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726
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737
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747
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758
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773
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788
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.
801
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813
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.
833
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848
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864
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866
867
869
870
871
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876
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888
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