Title 沿岸からドームふじへ至るルート沿いの光沢雪面の分 布特性 Author(s) 古川, 晶雄, 本山, 秀明, 亀田, 貴雄, Kameda, Taka o Citation Issue Date URL Rights Type Text Version 南極資料, 52(特集号): 232-237 2008-06 http://hdl.handle.net/10213/1912 Copyright 2008 National Institute of Polar Resea rch Journal Article publisher Additional information http://kitir.lib.kitami-it.ac.jp/dspace/ National Institute of Polar Research 232 ῐQQ̱῏̱ῐ Scientific Note ̲ ̮̰̱῏ῴΰῚῤQ̰ῷ῏̱̲ῠQQQῌῠQQQQ ῎ΐῒ̮+῍ῌ῏ῑ̮+ῌ῍ῌ̮, Glazed surface along the traverse route from the coast to Dome Fuji Station, Antarctica Teruo Furukawa+῍, Hideaki Motoyama+ and Takao Kameda, ῑ,**1 Q 3 Q +* QQQ; ,**2 Q - Q ,. QQῑῒ Abstract: Frequencies of occurrence of snow surface features such as sastrugi, dunes and thermal cracks were observed along the traverse route from the coast to Dome Fuji Station. Comparison of data on thermal cracks in +33,, +333, ,**,, ,**and ,**. indicates that glazed surface has existed over several years. ̮ῐ: ̲ ̮̰̱῏ῴΰῚ QῤQ̰̱ῶ̱῏`ῷ῏̱̲̯̮̯῭`ῷ Ύῌ ῳ῏Ὸῌ ῭῏̱ῷῬῶῬ̯῟῝QῌQQῠQQQQQQῠ QῪQ῟ ῝῍ QQQῌ̯̯̯ῌ +33, Qῌ +333 Qῌ ,**, Qῌ ,**- Qῌ ,**. Q̯Q̰̰῝ ῭῏̱ῷῬῶῬῠ QQ̲ῠQ ῪQῌ ῭῏̱ῷῬῶῬ̮QQ̯̰῝῟̯ QῘ̰̰Q ̮ΐ̰ῗ̯̮Q̰̮̯̯῟῝῍ ῗ̰ῡQQQῌ̮QQ ̯̰῝῟ ̯QQΊ̰QQ̮ΐ̰ῗ̯ῪQῙ̯̰῍ +῍ ῡ Ὶ ῧ ̯ Q̳῍̯QQQQ̯ῡῌ ῠQ̲Q̯̮̳Ῐ̰῝QQῠQ̮Q̳̮Q̮̯̰῟̯QQQ ῤ̲QῙῌ Qῌ̲QQ ῑkatabatic windῒ ̮QQΊ̰῍ QQῠQΐῺ̯ῡῌ ΏQῪQῚ̯Qῌ ̲QQ̮Q̮ῌ QQQ̯̰῟̯Q̮ῼῢ̰QQῠQQQ̮̳ῗ̰῍ ῥ῝ῌ ̲ Ὼ̯ῡQ̳Ό ῠῚῩῐ̯̰̰QQ̮Q̮῍ QῠQ῏ῪQῖQQQQῠQῌ̯ῡΐ̰QQ̯ῡQῠQQ̮ Q̯̳ῗ̰ῌ ΐ̰QQ̯ῡQῌῠQῡ̮̮Q̲Ῑ̯̰῍ ῥ῝ΐ̰QQ̯ῡ῾QQQ ̯ ̰῝῟̯QQ̮QQῙ̯̰̯Q̮̰̰̰QQῨΐ̰῍ QQῠQQQῪQ´Ῑῌ QQQQQ ῌ̯ῡ῎῎̯QῌQQ ῑsnow surface featureῒ ̮ῦ̰̰̰῍ ῗῠ῞QQQῌ ῑglazed surfaceῒ ῑQ +ῒ Q̯ῡQ̳ ̯̰῝῟̯QQ̮QQῙ̯̰̯Q̮̰̰ῌ QQQῌῠQQQQ ̯QQQῌQ̯ῠQQQQ̳ ῪQ̰ῗ̯ῡῌ QQQῌQQQῠQQῌ ῥ῝ῡQQῠQQ QQῌ΅`ῲῴQQ̳QQῒQQQQQ῍ National Institute of Polar Research, Research Organization of Information and Systems, Kaga +-chome, Itabashi-ku, Tokyo +1--2/+/. , QQQQQ Q QQ ̲QQQQQ῍ Snow and Ice Research Laboratory, Department of Civil and Environmental Engineering, Kitami Institute of Technology, +0/ Koen-cho, Kitami, Hokkaido *3*-2/*1. ῍ Corresponding author. E-mail: [email protected] + QQQῌ Vol. /,ῌ QQQῌ ,-,ῌ,-1, ,**2 Nankyoku Shiryˆ o (Antarctic Record), Vol. /,, Special Issue, ,-,ῌ,-1, ,**2 ῎ ,**2 National Institute of Polar Research NII-Electronic Library Service National Institute of Polar Research Ὼ̲̮̰ῳ῎̱ῤῚῥQ̰ῴ῎ῲῺῢ̳QQQῢQQQQ 233 ῌ + ῭῎̱ῴΎ̱`Ύ̰Q̳QQQ ῐ+322 Q +* ̳QΌῌ IM ῴ῎ῲQῌ QQ -*** m Q ῑ῍ Fig. +. Glazed surface with thermal cracks (October +322, Route-IM, about -*** m in elevation). ̮Q̰ῗ̯ῡ̰̰QQῬ̰QQ QῥῢΌ ̰QQΊ̰Q̯QQ̯ΐ̰῍ QQQ̯ΰῌ Q , ῡQΊῺ̲ῢ S+0 QQ ῐ03ῒ*,ῌS, .*ῒ*-ῌE, /3+ m a.s.l.ῑ ̮̰ῳ῎̱ῤῚ̲ Q ῐ11ῒ+3ῌS, -3ῒ.,ῌE, -2+* m a.s.l.ῑ ῥQ̰ῲ̱̱῎΅ῴ῎ῲῺ̯ Furukawa et al. ῐ+330ῑ ̮ +33, QῡQ̯῟QQ QῢQ̳QQQQῡῼ̮̯ῌ +333 Q̮̰ ,**. Qῧ̯ῢ̳QQQῢ ̲Q ´̮̰Q̰̮ῡῠ̯῟̳QQQῢQQῷῢ QQΏῡ̯̯Qῦ̰῍ ῠ̮ῌ +33, Q̯ +333 Qῢ̲Qΰ̳Q̮ῌ ,**, Qῢ̲QΰQQ̮ῌ ,**- Q̯ ,**. Qῢ̲QΰQ̮Q̯῟῍ ,῍ S+0῏ῳ῎̱ῤῚ̲ῢQQ QῢQ̳QQQQ ῭΅ῴῪῌ ̱῎ῌ ̳QQQ̯̯῟QQ Qΰῌ ῝̰῞̰̮QQῡQQΊ̰Ῡῢ̯ ΰῠ῍ ̲QῢQῘῠ῭΅ῴῪ̮QQῙ̯̰QQ̯ῌ ̲Q̮Q̮῭΅ῴῪ̮̳QῙ ̯QQΊ̰QQ̮QQΊ̰QQῩΐ̰῍ ῧ῟ῌ ῭΅ῴῪ̮QQῙ̯̰QQ̯Ῡῌ ῭΅ ῴῪ̯῭΅ῴῪῢ̲ῡ̳QQQ̮Ῠ̰̰̰QQῩΐ̰῍ QQ QῢQQῢQQQ ̳̰Q ῶΊ̰ῡΰῌ ῗῙ῟QQ QῢQQῢQQ̰ῸQῢQQ̯῾QΊ̰QQ̮ΐ̰῍ Furukawa et al. ῐ+330ῑ ΰῌ +33, Q ++ ̳̮̰ +, ̳ῡ̮ῖ̯ῢῳ῎̱ῤῚ̲Q̮̰Ὼ̲ῢ S+0 QQῥQ ̰QQQQQῢQῡῌ QQQῢQ̮̰ῸQῢ̲Q̯QQ̰QQ̲QῙῌ ῭΅ῴῪῌ ̱῎ ῌ ῭῎̱ῴΎ̱`ΎῢQ̳QQQQ̰ QῙ῟῍ ῝ῢ ´̰Q - ῡQΊ῍ ̳QQQΰῌ ῭ ΅ῴῪῌ ̱῎̯QQΊ̰ῗ̯̮Q̮ῌ ῝ῢQQQῠ̯̰QQQῡ̲QΊ̰ῢΰQῙ῍ NII-Electronic Library Service National Institute of Polar Research QQQῌQ̳QQῌΏQῺQ 234 Fig. ,. ῌ , ̱Ὸ̯ S+0 QQ̮ῥ῭῎̯ῗΌQ̯̳ῧῬῲ΅῎̰ῳ῎Ῥ῍ Location map snowing the traverse route from near the coast at S+0 to Dome Fuji Station. QQQ̯ῤ̮῟QQ̮ ̰ῲ̰ῬQ῝QῩῨῚQQ῝̯̰῎`ῳ̰ῲ̰̰̮ῶ̳̮Ῠῧ ̮῞̮Q῍ ̰῎`ῳ̰ῲ̰̰̯ῌ Nishio ῑ+32-ῒ ̯ῤῧ ῏ῢῙῠΌQῐ ῝̯QQ ῑsnowquakeῒ ̯ῶQ̯ῤῨ̯ῌ ̰ῲ̰ῬQ̯QῩῨΐ,*C ̱̱̯Q̱ῖῚQQ̯QQ̱Q̮̮ῥ ̯ῼ̲̯Q̱Ῐῧ̮῞̯ῤῦῼ̲̯̳QῘῧ ̯̲Q̮Ῠῧ῍ ῖῚ̮ΊQQ ῝̯ῌ ̰῎ `ῳ̰ῲ̰̰̮ῶ̳̮ῨῚQQ̰ QQQ῞Ῐῧ῍ Q , ̯ῤῨ̯ῌ +33, Q̯̯ QQQ̯ S +0 ̮ῥ̯´Q̮ -/*ῌ1+* km ̯̲ῷ῝ῶ̳̮ῨῚ῍ ̰῎`ῳ̰ῲ̰̰̯ῷ῾Q̯Ῠῧ̮ῌ S +0 ̮ῥ̯´Q̮ ./* km Q̲῝ ΰQQQ̮ ̮ῌ Q̯ ./*ῌ/,* km ̯̲ῷ῝Q̮ῶ̳̮Ῠ Ὶ῍ ῡῚ QQQ̮ῶ̳̮ῨῚQQ῝̯ῌ ̰̰Ὺῳ̰῞Ύ῎̱̯QQQ̯Q̮῟ῧ῍ -῍ QQQ̯QQ̯̲QQῴ +33, Q̯ῶ̳̮ῨῚ QQQ̯̳Q̱ Q̮Q̮Ῠῧῤ̮῟̲̳̮ῼ῟̲ῷ̯Q̳ῖῌ NII-Electronic Library Service National Institute of Polar Research `̱̮̯̰῎̰̯̮̯ῼ̯Ὺ῎Ῡ`ΐ῞Ὸ Q῞QQ̳ 235 ῌ - S+0 ̳̮̯̰῎̰̯̮̱ ̯ῼ̯Ῡ̰̰῎ῥῪ῎Ῡ`ΐ῞̲̱QῤῥῧῪῢ ῏Ὼ̮ῑ-* cmῐῌ ̱QῤῥῧῪῢ ῏Ὼ̮ῒ-* cmῐῌ Ῠ̰῎Ύῌ ῤ῎̰Ὺΰ̰ῦΰ῞̲ῷQ̳QQΊ QQῺ̳Ί̱QῺ̳῍ ΅QQ῟Ὸ Q̮ῲΏ̮̯Ῐ̱ῳῡ´ῖ῍ ΅Q῟ +33, Q῝Ὸ Q̮ῲΏ̮̯Ῐ̱ῳῡ´ῖ῍ ̲ Q῟QQῴ ῞̲ῷQ̳̮ ̳Ὶ̮̮ῙῘ̱ῳῡ ´ῖ῍ Furukawa et al. ῏+330ῐ ̮̯῞῭Q῍ Fig. -. Frequencies of occurrence of small (heightῑ-* cm) and large (heightῒ-* cm) sastrugi, dunes, and thermal cracks, and surface and bedrock elevations along the traverse route from S+0 to Dome Fuji Station. Shadowed areas indicate the sections where glazed surface was observed in +33,. Shaded areas indicate the sections where frequencies of occurrence could not be observed. This figure is quoted from Furukawa et al. (+330). ῗ῞̯̱̲Q῟̱Q῞QQ̲῝Ῥ̳ῖ̯ ῏Furukawa et al., +330ῐ῍ ̮῞̮Ί̮̯Ὸ Q̮Q ῖ̯̲̲῟ῗ῞Ῥ̳ῡQΐ̮Ί̮῾Ώ̮̯̯῍ ῗ̮Ὶῌ +333 Q +, ῶῌ ,**, Q +ῌ, ῶῌ ,**- Q + ῶῌ ,**. Q +ῌ, ῶ῝̳Ὺ῎Ῡ`ΐῚΌῠ̯Ῐῤ῎̰Ὺΰ̰ῦΰ῞ῲΏ Ί῞QῡΌῙῘ῍ NII-Electronic Library Service National Institute of Polar Research Ῠ῭ΎῸῌ̰̰ῶῌῥῤῸ 236 ῌ . S +0 `ῐῖ῟῎̯̮ΐΰ`̮̰ῗ῞̯̯῎̯῎῞ῠ῏̮̱ῷ̰ῲ̮ΰ̱̰ῲῌ +33, ῳ̮ῡ̰ῒῘΊ῎̯̯Ὶ̯῝Ὶ̮Ὺῧ̱ῲῴ̱ῌ +333 ῳῌ ,**, ῳῌ ,**- ῳῌ ,**. ῳ̮ Ί῎̯̯Ὶ̯῝Ὶῑῡ̰ῒῘῦῢ῍ ̯̱̮ +33, ῳ̮Ῡ΅Ῥῷῑῡ̰ῒῘῦῢῙ̰῍ Fig. .. Surface and bedrock elevations, and frequency of occurrence of thermal cracks observed in +33,, and sections where thermal cracks were observed in +333, ,**,, ,**- and ,**. along the traverse route from S+0 to Dome Fuji Station. Shadowed areas indicate the sections where glazed surface was observed in +33,. NII-Electronic Library Service National Institute of Polar Research ̱Ό̮Ῠ΅῎ῠῖῡ ̰ῳ῎῭̱ΐ̯̲̳̳Q̯QQQ̳ 237 . ̯ S+0 ̮Ῠ΅῎ῠῖῺQῡ ̰ῳ῎῭̱ΐ̯QQ̲Qῌ ῺQ̲Qῌ +33, Q̯̲Ὶ Ὺ῎ῳ̰ῲῬ̰̯QQQQῌ +333 Qῌ ,**, Qῌ ,**- Qῌ ,**. Q̯Ὺ῎ῳ̰ῲῬ̰̮ῷ ̮̰Ὶ´Ὸῌ ῗ̯̰Ί̲̳̳Q̮̳῾̮Ὶ´Ὸ̰ ῗ῍ S+0 ̮Ῠ̯ῼQ̮Q ..* km ̮ῨQ 0** km ̯´Ὸ ῐQ̲ ,2** m ̮Ῠ --** m ̯´Ὸῑ ῟̯ῌ +33, Q̯̲̳̳Q̮ῷ̮̰Ὶ´Ὸ̯Q MD3,῏MD30ῌ MD+*2῏MD++*ῌ MD+12῏MD +20ῌ MD+30῏MD,*.ῌ MD,+,῏MD,+.ῌ MD,+2῏MD,,.ῌ MD,-.῏MD,-0ῌ MD,..῏ MD,/.ῌ MD,3.῏MD-**ῌ MD--*῏MD--2 ̯´Ὸ῟ +333 Qῌ ,**, Qῌ ,**- Qῌ ,**. Q ̯ῦ̲̳̳Q̮ῷ̮̰Ὶ῍ Ῑ̰Ῠ̱ῴ῟̯Q̲ ,*** m ̮Ῠ ,2** m ̯´Ὸ̯Q̲ --** m ̮Ῠ -1** m ̯´Ὸ῟̲̳̳ Q̯ῷ̮̰Ὶ̮ῌ Q̯ῧ῞̲̳̳Q̮ῷ̮̰Ὶ´Ὸ̮̱̯̰῍ ̱ ̯̮̯̮Ῠῌ ̲̳̳Q̮ +* Q̱ ̯̰Ὶ῞QΏ̯̳῾ῗ̰ ̲̮ῒ̰̮̯̯̱ῌ + QQQ̯QΐΏῸ̯ῤ̳῾ῗ̰ ̲̮ῒ̰̮̯̰ ῗ῍ .῍ ΰ ̯ ῥ S+0 QQ̮Ῠ΅῎ῠῖῺQῡ ̰ῳ῎῭̱ΐ̯̲̳̳Q̯QQ̯῝ΐ῞ῌ +33, Q̯̳Q ̲̱̯ +333 Qῌ ,**, Qῌ ,**- Qῌ ,**. Q̯̮̰ῷ̲̱̯̰Qῶῗ̰̯ῌ ΅῎ῠῖῡ ̰῭ῲ`῎Ύῳ῎῭̱ΐ῟̯Q̲ ,*** m ̮Ῠ -1** m ̯´Ὸ῟̲̳̳Q̮ῷ̮̰ῌ Q̲ ,2** m ̮Ῠ --** m ̯´Ὸ῟̯ +33, Q̯̲̳̳Q̮ῷ̮̰Ὶ´Ὸ̯ῢ̯̰̯῟ῌ - ̯ῷ ̯ῧῩ +333 Qῌ ,**+ Qῌ ,**- Qῌ ,**. Q̯ΐῘ̰̯Q̯ῦ̲̳̳Q̮ῷ̮̰Ὶ῍ ̮ ̯̮̯̮Ῠ̲̳̳Q̮ +* Q̱ ̯̰Ὶ῞̲̳̮῞̳῾ῗ̰ ̮ῒ̰̮̯̮QῨ̮̯ ̯Ὶ῍ ῍ ῌ Furukawa, T., Kamiyama, K. and Maeno, H. (+330): Snow surface features along the traverse route from the coast to Dome Fuji Station, Queen Maud Land, Antarctica. Proc. NIPR Symp. Polar Meteorol. Glaciol., +*, +-ῌ,.. Nishio, F. (+32-): Studies on thermally induced fractures and snowquakes of polar snow cover. Mem. Natl Inst. Polar Res., Ser. C, +., .2 p. NII-Electronic Library Service
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