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Journal of the Japanese Society of Snow and Ice最新文献

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A study of snow-pack characteristics in Hakuba backcountry 白波边远地区积雪特征研究
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.489
S. Ikeda
{"title":"A study of snow-pack characteristics in Hakuba backcountry","authors":"S. Ikeda","doi":"10.5331/SEPPYO.69.489","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.489","url":null,"abstract":"長野県白馬村周辺の山岳地において発生した5つの雪崩の破断面での積雪断面観測と1999/00～2003/04冬期に実施した6つの定点での積雪断面観測結果(140ピット)を基に対象地の雪崩発生に関わる積雪特性について考察した.破断面の観測によると,雪崩の発生原因は,新雪の弱層(2例),表層付近に形成されたこしもざらめの弱層(1例),凍結したざらめと新雪との弱い層境界(1例),地面付近に形成されたこしも・しもざらめ(1例)によるものであった.定点での断面観測により新雪,表層のこしもざらめによる弱層および弱い層境界は対象地内の広域で観測された.新雪による弱層は観測期間において最も高頻度で年により較差なく観測されたのに対し,表層のこしもざらめによる弱層および弱い層境界は観測される頻度が低く,年により較差もみられた.一方,地面付近に形成されたこしも・しもざらめは吹き払い地において局所的に形成されるが,高頻度で年により較差なく観測された.過去10冬期の気象データから北米において使用されている雪崩気候区分を試みたところCoastalに区分され,観測結果を支持する結果となり,この区分が日本の山岳地にも適用できる可能性があることが示唆された.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115808575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The technology to induce an artificial avalanche 制造人工雪崩的技术
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.457
Makoto Machida, N. Hayakawa, T. Machida, S. Sakaue
{"title":"The technology to induce an artificial avalanche","authors":"Makoto Machida, N. Hayakawa, T. Machida, S. Sakaue","doi":"10.5331/SEPPYO.69.457","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.457","url":null,"abstract":"わが国における爆薬を使用した人工雪崩誘発技術は,半世紀近い歴史を有し独特の発展を遂げてきた.しかし,その経緯を知る人は少なくなり,またその技術的発展段階では経験的要素も多いが,多くの基礎知識が積み上げられたもので,いまだ有用な技術が多い.本論文はこれまでの人工雪崩の歴史を概観し,あらたに爆薬の選定と積雪層への装薬法を検討した.さらに応用研究として,斜面での雪崩誘発技術と雪庇処理技術の開発を試みたので,それらの結果を報告する.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121259445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A report of avalanche accidents in February -April 2007 2007年2月至4月的雪崩事故报告
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.507
I. Kamiishi, S. Yamaguchi, A. Sato, Y. Kodama, Toshihiro Ozeki, Mikio Abe, Kazuo Higuchi, S. Anma, Y. Takeuchi, T. Machida, Ryo Morohashi, S. Goto, S. Koshimizu, T. Uchiyama, K. Kawada, H. Iida, K. Izumi, M. Hanaoka, K. Iwasaki, Takeshi Nakano, M. Fukuda, S. Ikeda, K. Aida, Takafumi Katsushima
{"title":"A report of avalanche accidents in February -April 2007","authors":"I. Kamiishi, S. Yamaguchi, A. Sato, Y. Kodama, Toshihiro Ozeki, Mikio Abe, Kazuo Higuchi, S. Anma, Y. Takeuchi, T. Machida, Ryo Morohashi, S. Goto, S. Koshimizu, T. Uchiyama, K. Kawada, H. Iida, K. Izumi, M. Hanaoka, K. Iwasaki, Takeshi Nakano, M. Fukuda, S. Ikeda, K. Aida, Takafumi Katsushima","doi":"10.5331/SEPPYO.69.507","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.507","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115184795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Damages caused due to heavy snowfall in Gifu Prefecture in 2006 2006年岐阜县大雪造成的损失
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-05-15 DOI: 10.5331/SEPPYO.69.383
H. Maéda
{"title":"Damages caused due to heavy snowfall in Gifu Prefecture in 2006","authors":"H. Maéda","doi":"10.5331/SEPPYO.69.383","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.383","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115089567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial variability of snow chemistry in Mt. Komagatake, Japanese Central Alps 日本中阿尔卑斯矮竹山积雪化学的空间变异
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-05-15 DOI: 10.5331/SEPPYO.69.371
Motoki Tanaka, Keisuke Suzuki
{"title":"Spatial variability of snow chemistry in Mt. Komagatake, Japanese Central Alps","authors":"Motoki Tanaka, Keisuke Suzuki","doi":"10.5331/SEPPYO.69.371","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.371","url":null,"abstract":"山岳地域である中央アルプス駒ヶ岳東西尾根において,冬季降水中の化学成分の空間分布を把握するとともに,ひとつの山体を越えてエアロゾルが輸送される過程を,降水中の化学成分の変化を通して明らかにすることを目的として研究を行った.積雪中のnss-SO42-(非海塩性のSO42-)濃度とnss-Ca2+(非海塩性のCa2+)濃度は,山体西側より東側の方が低い傾向であった.一方, NO3-濃度は,東西方向による差異は認められなかった.積雪中のNO3-/nss-SO42-比は,西尾根より東尾根の方で大きい値を示していた.このことは,東尾根における積雪には,日本列島由来のエアロゾルをより多く含む空気塊によって化学成分が供給されていることを示唆している.山体西側や主稜線付近では偏西風の影響により,西よりの風が卓越しているのに対し,東側では上昇気流により,東よりの風が支配的であった.この上昇気流により,東側低空域から日本列島由来のエアロゾルが,山体東側上部まで輸送・沈着されているものと推測される.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127359217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Degree of circularity as a structural factor of new snow 圆度作为新雪的结构因素
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-05-15 DOI: 10.5331/SEPPYO.69.337
M. Kajikawa, N. Sato, Y. Asuma, K. Kikuchi
{"title":"Degree of circularity as a structural factor of new snow","authors":"M. Kajikawa, N. Sato, Y. Asuma, K. Kikuchi","doi":"10.5331/SEPPYO.69.337","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.337","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129121966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on fluid dynamics numerical simulation for stream avalanches 水流雪崩流体力学数值模拟研究
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-05-15 DOI: 10.5331/SEPPYO.69.357
Y. Fukushima, Norihito Osawa
{"title":"Study on fluid dynamics numerical simulation for stream avalanches","authors":"Y. Fukushima, Norihito Osawa","doi":"10.5331/SEPPYO.69.357","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.357","url":null,"abstract":"本州日本海側の豪雪地帯ではその雪の量にも係わらず比較的温暖である.このため,2月から3月にかけては,全層雪崩が多発し,人家に被害を及ぼしたり,道路の閉塞を伴う災害が発生する.このような全層雪崩についてはこれまで多くのモデルが開発されている.しかし,これらのモデルは実際に起こる雪崩をかなり簡略化したり,雪玉の運動に置き換えたりするモデルである.本研究では流体力学の基礎方程式を元にこれを斜面に対して直交方向と流れ方向に積分して,全層雪崩の基礎方程式を求めた.さらに,構成関係式を加えて,雪崩のシミュレーションを可能にするモデルを構築した.この中で,雪の取り込み係数と離脱係数の評価が重要であることを示した.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on adfreeze shear strength of frozen sand along curved interface 冻结砂沿弯曲界面的冻结抗剪强度研究
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-05-15 DOI: 10.5331/SEPPYO.69.347
Daisaku Sumitani, Yasushi Ueda, T. Ohrai
{"title":"Study on adfreeze shear strength of frozen sand along curved interface","authors":"Daisaku Sumitani, Yasushi Ueda, T. Ohrai","doi":"10.5331/SEPPYO.69.347","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.347","url":null,"abstract":"地盤凍結工法において,円形構造物に接する凍土を造成する場合,凍着せん断応力の発生方向や大きさは凍着曲面上の位置によって異なる.そのため,凍着せん断方向を1方向のみとする従来の凍着試験だけでは凍着曲面の安全性を定量的に評価することができない.今回,砂凍土と鋼管とを用いた曲面凍着せん断実験を行った.凍着破壊は,凍土の凍着位置や厚みによって,凍着面全域に生じる場合,凍着面の一部だけ生じる場合,全く生じず凍土部のみ破壊する場合があった.そこで,凍着面でのせん断応力の解析に基づく凍着破壊発生の判定式を導いた.この判定に基づく破壊荷重や凍着破壊の範囲および破壊モードの解析結果が実験結果に一致することから,判定の妥当性を確認した.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130458454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Some features of the Antarctic sea ice observed in MOS MESSR imagery 在MOS MESSR图像中观测到的南极海冰的一些特征
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-03-15 DOI: 10.5331/SEPPYO.69.249
K. Ishida, K. Ohshima
{"title":"Some features of the Antarctic sea ice observed in MOS MESSR imagery","authors":"K. Ishida, K. Ohshima","doi":"10.5331/SEPPYO.69.249","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.249","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114677918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Satellite remote sensing of snow cover 积雪的卫星遥感
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-03-15 DOI: 10.5331/SEPPYO.69.155
T. Aoki
{"title":"Satellite remote sensing of snow cover","authors":"T. Aoki","doi":"10.5331/SEPPYO.69.155","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.155","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114948320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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