U. S. Geological Survey Water-Supply Paper, 2260. Streamflow characteristics of Mountain Streams in western Montana / Parret, C.

Public ISBD Titre de série : U. S. Geological Survey Water-Supply Paper, 2260 Titre : Streamflow characteristics of Mountain Streams in western Montana Type de document : texte imprimé Auteurs : Parret, C. ; Hull, J. A. Mention d'édition : U.S. Geological Survey Editeur : U.S. Geological Survey Année de publication : 1985 ISBN/ISSN/EAN : CI-04990 Note générale : This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses. Langues : Anglais (eng) Mots-clés : Ruissellement  Hydrologie  Mesure et Observation  Météorologie  Rivière  Montagne Index. décimale : 551.48 Hydrologie : Résumé : This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses. Note de contenu : This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses. U. S. Geological Survey Water-Supply Paper, 2260. Streamflow characteristics of Mountain Streams in western Montana [texte imprimé] / Parret, C. ; Hull, J. A.  . -  U.S. Geological Survey . - U.S. Geological Survey, 1985. ISSN : CI-04990 This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses. Langues : Anglais (eng) Mots-clés : Ruissellement  Hydrologie  Mesure et Observation  Météorologie  Rivière  Montagne Index. décimale : 551.48 Hydrologie : Résumé : This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses. Note de contenu : This paper showed that once monthly streamflow measurements were used to estimate long-term mean annual flow and various points on the flow duration curve forms 12 sites in mountains areas of western Montana. Then, he talked about data from all measurement sites plus data from 34 gaging stations were used to develop regression equations relating mean annual flow of 10, 20, 40, 50, 60, 70, 80 and 90 percent exceedance probability to mean annual flow. The study area was divide into two regions, with a different set of estimating equations applicable to each region. Finally it 's how that average errors of prediction were also calculated using data with held from the regression analyses.

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U. S. Geological Survey Water-Supply Paper, 2273. Polallic Creek debris flow and subsequent dam-break flood of 1980, East fort hood river basin, oregon / Ballino, G. L.

Public ISBD Titre de série : U. S. Geological Survey Water-Supply Paper, 2273 Titre : Polallic Creek debris flow and subsequent dam-break flood of 1980, East fort hood river basin, oregon Type de document : texte imprimé Auteurs : Ballino, G. L. ; Pierson, T. C. Mention d'édition : U.S. Geological Survey Editeur : U.S. Geological Survey Année de publication : 1985 ISBN/ISSN/EAN : CI-04982 Note générale : this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel... Langues : Anglais (eng) Mots-clés : Géographie  Hydrologie  Erosion  Barrage  Inondation  Bassin versant Index. décimale : 551.48 Hydrologie : Résumé : this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel... Note de contenu : this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel... U. S. Geological Survey Water-Supply Paper, 2273. Polallic Creek debris flow and subsequent dam-break flood of 1980, East fort hood river basin, oregon [texte imprimé] / Ballino, G. L. ; Pierson, T. C.  . -  U.S. Geological Survey . - U.S. Geological Survey, 1985. ISSN : CI-04982 this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel... Langues : Anglais (eng) Mots-clés : Géographie  Hydrologie  Erosion  Barrage  Inondation  Bassin versant Index. décimale : 551.48 Hydrologie : Résumé : this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel... Note de contenu : this report talks about approximately 9 p.m.on december 25, 1980, a intense rainstorn and the entremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 yd3 at the head of polallie Creek Canyon on the northea..... plank of mount hood, oregon. the lands lide was transformed rappidly into a debris flow, which surged down the channel at iclocities of about 40-50 ft/s esowing and incorporating large volumes of channel fill and uprooted vegetation. When it readed the debris fan at the confluence with the East-fork Hood river, the debris flow de posited approximately 100,000 yd3 of satured, poorly sorted debris to a maximum thickness of 35 ft, forming a 750-ft-long temporavy dam accross the drannel...

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