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

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Water flow control of ice regelation andestimation of thickness andviscosity of water film 冰调节的水流控制及水膜厚度和粘度的估算
Journal of the Japanese Society of Snow and Ice Pub Date : 2012-11-15 DOI: 10.5331/seppyo.74.6_385
Katsutoshi Tusima
{"title":"Water flow control of ice regelation andestimation of thickness andviscosity of water film","authors":"Katsutoshi Tusima","doi":"10.5331/seppyo.74.6_385","DOIUrl":"https://doi.org/10.5331/seppyo.74.6_385","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125485326","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
Questions with regard to the airplanes of the Icing Observatory at Mt.Niseko-Annupuri, Hokkaido 关于北海道新雪古安奴里山结冰观测站飞机的问题
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-11-15 DOI: 10.5331/SEPPYO.69.659
K. Kikuchi
{"title":"Questions with regard to the airplanes of the Icing Observatory at Mt.Niseko-Annupuri, Hokkaido","authors":"K. Kikuchi","doi":"10.5331/SEPPYO.69.659","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.659","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121751338","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
Generalized Pitot tube for wind speed measurement in the field 用于野外风速测量的广义皮托管
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-11-15 DOI: 10.5331/SEPPYO.69.651
S. Takami, H. Ohno, Y. Kominami
{"title":"Generalized Pitot tube for wind speed measurement in the field","authors":"S. Takami, H. Ohno, Y. Kominami","doi":"10.5331/SEPPYO.69.651","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.651","url":null,"abstract":"一様な水平流れの圧力をP,この流れに置かれた球の表面における圧力をPp,この流体の密度をρとすれば,エネルギー方程式から,Cを一般流の速さに対する球の表面での流速の比として,Pp-P=(1/2)ρU2(1-C2)が成立する.ここで,ρを知って,球の頂点と一般流との間の圧力差(Pp-P)を測れば,ポテンシャル流理論からCは1.5となるので,上式から一様流れの速さUを求めることができる.この方法を検証するため,平坦な水田に囲まれた気象観測露場で,次のような装置と風車型風速計による平行観測を実施した.装置は,その頂点から中心軸に沿って圧力孔をあけた半球状の圧力プローブを円筒容器の開口端に装着し,この円筒容器内の圧力(Pp)と円筒外の一般流の圧力Pとの差を水晶式圧力計で測定するようにしたものである.こうして測定した圧力差と上式から求めた風速は,風車型風速計による観測値とよく一致し,本方法の妥当性が確認できた.本方法で用いた装置は,可動部がなく,簡単で堅牢である.測定原理,データ処理も単純である.したがって,この方法は,寒冷,積雪地のような回転式風速計の作動に障害が出やすい条件下において,長期に信頼性の高い風速測定値を得る一つの可能性を与えるだろう.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122358973","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
Physical form of pollutants in the atmosphere in Chengdu, Sichuan Province, China 中国四川省成都市大气中污染物的物理形态
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-09-15 DOI: 10.5331/SEPPYO.69.611
N. Akata, F. Yanagisawa
{"title":"Physical form of pollutants in the atmosphere in Chengdu, Sichuan Province, China","authors":"N. Akata, F. Yanagisawa","doi":"10.5331/SEPPYO.69.611","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.611","url":null,"abstract":"大気中に存在する環境汚染物質の物理的存在形態を明らかにすることを目的に,大気汚染の深刻な地域である中国四川省成都市において大気の採取を2通り(粒子除去用フィルターの有無)行い,水溶性イオン成分の測定を行った.その結果,F-は粒子態として, Cl-はガス態として大気中に存在していた.NO3-は主に粒子態として大気中に存在していた. NO2-は夜間に濃度が高くなるのに対し,NO3-は日中に濃度が高くなる傾向であった. Sは定常的にSO2として大気中に存在しており,日中の人為起源排出量が増加する時間帯に,粒子態の濃度が増加していた.NO3-およびSO42-の大気中での時間変動は,前駆物質を含む大気中への排出量だけでなく,大気中での様々な化学反応に支配されていた事が示唆された.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131116417","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
Relations among maximum snow depth, mean air temperature, and precipitation determined from their monthly values in snowy areas of Japan 日本雪区最大雪深、平均气温和降水的月值关系
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-09-15 DOI: 10.5331/SEPPYO.69.591
Masaaki Ishizaka
{"title":"Relations among maximum snow depth, mean air temperature, and precipitation determined from their monthly values in snowy areas of Japan","authors":"Masaaki Ishizaka","doi":"10.5331/SEPPYO.69.591","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.591","url":null,"abstract":"筆者は先に日本の積雪地域の月平年値(1,2月平均)に関して,月最深積雪,月平均気温,月降水量間の関係を検討し,温暖積雪地域である「湿り雪地域」(1月の月平均気温が0.3℃以上の積雪地域)の月最深積雪には月平均気温および月降水量で決まる上限があることを示し,その目安となる式を提案した.ここでは,上記の上限が成立し得る範囲を含め,より寒冷な積雪地域を含んだ日本の積雪地域全体の中でのこれら三要素間の関係を検討した.その結果,月平均気温に対する月最深積雪の月降水量に対する比は,地点毎にばらつきながらも全体的には寒冷な地域になればなるほど大きくなること,0℃より温暖な地域で成り立つ上限については,それより寒冷なおよそ-1℃までの範囲では,上限を若干上回る多雪地域の地点が存在すること,さらに寒い地域では,大幅に上回る地点が相当数出現し,同じ上限の式を使用することができないことなどがわかった.また,上限と同様,月平均気温と月降水量で決まる月最深積雪の下限が存在することがわかり,その目安となる式を提案した.そして,上限の式からは,一定の月最深積雪を上回るのに必要な最小の月降水量が,また下限からは,寒冷地域でしもざらめ雪が発達するために,それを上回ってはいけない月降水量の最大値がそれぞれ気温に応じて決まることなどを示し,上下限によって積雪地域の特徴の一端を知り得ることを示した.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133072833","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
New method to measure the adhesive shear strength of snow particles using a rotating disk 用旋转圆盘测量雪粒粘接抗剪强度的新方法
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-09-15 DOI: 10.5331/SEPPYO.69.601
O. Abe
{"title":"New method to measure the adhesive shear strength of snow particles using a rotating disk","authors":"O. Abe","doi":"10.5331/SEPPYO.69.601","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.601","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122345210","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
Slab avalanches occurred at Tsurunoyu in Nyuutou Onsen, Akita Prefecture, Japan 在日本秋田县牛头温泉的鹤野峪发生了雪崩
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.445
Takeshi Sato, H. Hirashima, M. Nemoto, Shigeto Mochizuki, O. Abe, M. Lehning, A. Sato, M. Hanaoka, K. Akiyama, S. Murakami, H. Daimaru
{"title":"Slab avalanches occurred at Tsurunoyu in Nyuutou Onsen, Akita Prefecture, Japan","authors":"Takeshi Sato, H. Hirashima, M. Nemoto, Shigeto Mochizuki, O. Abe, M. Lehning, A. Sato, M. Hanaoka, K. Akiyama, S. Murakami, H. Daimaru","doi":"10.5331/SEPPYO.69.445","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.445","url":null,"abstract":"2006年2月10日,秋田県仙北市の乳頭温泉鶴の湯の裏山の3カ所において相次いで発生した乾雪表層雪崩により,1名が死亡,16名がけがをした.雪崩発生の翌日に現地調査を行い,雪崩の状況やデブリの状態などを明らかにした.また,同日に積雪断面観測を行い,発生日未明から積もり始めた新雪層の構造を明らかにするとともに,ハンドテストによって弱層の存在を確認し,その勇断強度を測定した.さらに,1週間後および3月下旬の融雪期にも現地調査を行った.また,積雪変質モデル(SNOWPACK)を用いて積雪構造と積雪安定度のシミュレーションを行った.これらの結果から,この雪崩は,強い降雪が続く中で新雪層の積雪安定度が低下し,その内部に何らかの原因で生じた弱層をすべり面として発生したと考えられる.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"133 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":"122062773","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
In situ observations of weak layers caused by graupels and snow crystals in snow packs deposited in a controlled cold room 在受控冷室中沉积的积雪中的霰和雪晶造成的弱层的现场观测
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.481
Masaaki Ishizaka
{"title":"In situ observations of weak layers caused by graupels and snow crystals in snow packs deposited in a controlled cold room","authors":"Masaaki Ishizaka","doi":"10.5331/SEPPYO.69.481","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.481","url":null,"abstract":"天井の一部に開口部を設けた低温室を利用して積雪に形成される降雪粒子に起因する弱層形成の観測を行った.自然の降雪を天井開口部から-5℃前後に保たれた低温室内に取り込み,水平の実験台の上に降り積もらせた.このようにして1日ないし2日間に形成された積雪層を観測し,弱層の有無を調べた.弱層がある場合は,並行して稼働させている降雪粒子自動観測装置と降水量計の記録から,弱層形成に寄与した降雪粒子の種類や大きさ,降雪の強度などを推定した.その結果,これまで雪崩現場で観測されているように,大きな霰が集中して降った場合や雲粒の少ない広幅六花系の結晶が降った場合に弱層ができることを確認するとともに,その時の降雪粒子の特徴を明らかにすることができた.また,得られた降雪粒子の特徴や強度などから,この種の弱層の検知の可能性について考察した.このような人工的な環境場で弱層形成を観測する本手法は,降雪粒子の種類と大きさ,降雪量など,現場では変質の後でしか知り得ないことについても観測可能なことから,今後の雪崩弱層の研究に役立つものと考えられる.","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"29 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":"128746969","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
Mechanical characteristics of high-density snow blocks during collision 高密度雪块碰撞时的力学特性
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.471
Atsushi Shoji, K. Izumi, K. Kawashima, T. Iyobe
{"title":"Mechanical characteristics of high-density snow blocks during collision","authors":"Atsushi Shoji, K. Izumi, K. Kawashima, T. Iyobe","doi":"10.5331/SEPPYO.69.471","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.471","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"57 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":"126688660","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
On the avalanche of February 14, 2007 in the Hakkoda Mountains 2007年2月14日在哈科达山脉发生的雪崩
Journal of the Japanese Society of Snow and Ice Pub Date : 2007-07-15 DOI: 10.5331/SEPPYO.69.513
O. Abe, K. Rikiishi, S. Ishida, K. Kosugi, I. Kamiishi, H. Hirashima
{"title":"On the avalanche of February 14, 2007 in the Hakkoda Mountains","authors":"O. Abe, K. Rikiishi, S. Ishida, K. Kosugi, I. Kamiishi, H. Hirashima","doi":"10.5331/SEPPYO.69.513","DOIUrl":"https://doi.org/10.5331/SEPPYO.69.513","url":null,"abstract":"","PeriodicalId":331826,"journal":{"name":"Journal of the Japanese Society of Snow and Ice","volume":"51 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":"115056468","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
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