Development and application of a method to estimate short-term alpine sediment transfer in the Colorado FrontRange, U.S.A.
Bassin-versant ; Bilan sédimentaire ; Colorado ; Dynamique de versant ; Erosion des sols ; Etats-Unis ; FrontRange ; Géographie physique
Using photogeologic techniques to develop a terrain classification, clastic sediment movement was evaluated in the Roaring River Watershed in the Colorado FrontRange. - (DWG)
Late Pleistocene glacial equilibrium-line altitudes in the Colorado FrontRange: a comparison of methods
Colorado FrontRange ; Etats-Unis ; Glaciation ; Géographie physique ; Ligne d'équilibre glaciaire ; Montagne ; Méthodologie ; Paléoclimatologie ; Pléistocène supérieur ; Quaternaire zones moyennes ; Surfaces de tendance
Six methods for approximating late Pleistocene (Pinedale) equilibrium-line altitude (ELAs) are compared for rapidity of data collection and error (RMSE) from first-order trend surfaces, using the Colorado FrontRange. Second-order trend surfaces
demonstrate low ELAs in the latitudinal center of the FrontRange, perhaps due to higher winter accumulation there. The mountains do not presently reach the ELA for large glaciers, and small FrontRange cirque glaciers are not comparable to small glaciers
Fire history of a ponderosa pine/Douglas fir forest in the Colorado frontrange
The main objectives of this study are : 1) to characterize the fire regime of an area of montane forest in the Colorado FrontRange; and 2) to compare the utility of the different methods of dating fires in these forests.
Tree-growth response to Enso events in the central Colorado FrontRange
The inflence of climate associated with El Niño/Southern Oscillation (ENSO) events on tree growth in the central Colorado FrontRange is investigated through the analysis of two high altitude tree-ring chronologies. Dendrochronological techniques
are used to determine if ENSO-related climatic effects are detectable in tree-ring width patterns in the central Colorado FrontRange. The form of the tree growth response is identified and the variability of the influence of these events on tree growth
In this paper, the AA. report on a seven-year study of the geochemistry of stream water draining an alpine catchment in the Colorado FrontRange. This work has been part of an ongoing program of Long Term Ecological Research (LTER) and has three
Etude des retombées éoliennes en tant que processus pédogénétique en zone alpine, FrontRange, Colorado. Analyse de la surface des grains par microscopie électronique à balayage.
Temporal trends in the quality of streamwater in an alpine environment: Green Lakes Valley, Colorado FrontRange, USA
Charge en suspension ; Colorado ; Cours d'eau ; Ecosystème ; Etats-Unis ; FrontRange ; Hydrochimie ; Montagne ; Pollution ; Qualité de l'eau ; Variation saisonnière ; Végétation
Colorado ; Ecosystem ; FrontRange ; Hydrochemistry ; Mountain ; Pollution ; Seasonal variation ; Stream ; Suspended load ; United States of America ; Vegetation ; Water quality
The A. reports empirical records of water quality at four high elevation sites in the alpine environment of the Green Lakes Valley, east of the Continental Divide in the FrontRange. At these sites, partial records for the past 25 years, and more
Geomorphological characteristics of mature fault-generated rangefronts, Sudetes Mts., southwestern Poland
The Sudetes Montains are characterised by a residual tectonic topography, the typical landform being mature fault-generated rangefronts originated during the Late Tertiary. The general pattern of neotectonic movement in this area can be inferred
A dendrogeomorphological analysis of snow avalanches in the Colorado FrontRange, USA
In this study, dendrogeomorphological techniques are used to develop avalanche event chronologies and to reconstruct past slide magnitude at two sites located near Loveland Pass, Colorado FrontRange. Avalanche path reconstruction
Geochemistry and source waters of rock glacier outflow, Colorado FrontRange
The AA. characterize the seasonal variation in the geochemical and isotopic content of the outflow of the Green Lake 5 rock glacier (RG5), located in the Green Lakes Valley of the Colorado FrontRange. They focus on the 2003 season from
Photogrammetric analysis of FrontRange rock glacier flow rates
, then substracting elevations to detect change. Because horizontal and vertical change is minimal, FrontRange rock glaciers appear to be adjusted with current climate.
Channel geometry ; Colorado ; Environmental management ; FrontRange ; Historical period ; Human impact ; Mountain ; Stream ; United States of America
usefully applied to spatially differentiated geomorphic process domains with distinctive form and process. Using the Colorado FrontRange as an example, 3 examples of how knowledge of HRV can assist river management and restoration are discussed
Historical range of variability (HRV) describes the range of temporal and spatial variations in river variables such as flow regime or channel planform prior to intensive human alteration of the ecosystem. In mountainous river networks, HRV is most
Standortmerkmale US-Amerikanischer High-Technology-Industrien. Eine intraregionale Untersuchung am Fallbeispiel des Colorado FrontRange Corridors. Caractéristiques locales des industries high-technology américaines. Une étude intrarégionale avec
Evidence for cirque glaciation in the Colorado FrontRange during the Younger Dryas chronozone
The AA. present evidence that indicates a limited advance of alpine glaciers occured in the Colorado FrontRange Mountains during the Younger Dryas Chron. Sky Pond was selected for this study because it is situated directly downvalley from a moraine
with relative-age features similar to those of early Holocene to late Pleistocene glacial landforms in the Colorado FrontRange.