Examining the relationship between snowfall and wildfire patterns in the westernUnitedStates
Applied climatology ; Correlation ; Forest fire ; Snow ; Snow cover ; UnitedStates of America ; WesternUnitedStates
The AA. conducted an examination of the spatial and temporal relationships and correlations between snow cover and wildfire from 1986 through 1996 in the 11 westernstates of the UnitedStates. Snow-cover and wildfire data were aggregated
and normalized for each state, as well as for the entire western region. No strong correlation was found for the entire westernUnitedStates, nor did state aggregations show signs of consistent yearly correlation between measures of snow cover and wildfire
. Nevertheless, a few states experienced above-average acreage burned totals following winters with above-average snow cover.
Spatial variability of Late-Quaternary paleoclimates in the westernUnitedStates
Atmospheric circulation ; Climatic anomaly ; Orographic effect ; Palaeoclimate ; Palaeoclimatology ; Precipitation ; Quaternary ; Spatial variation ; Temperature ; UnitedStates of America ; WesternUnitedStates
This paper examines modern climate analogues of the westernUnitedStates for 18,000 and 9000 yr B.P. in order to explain patterns of spatial heterogeneity. The study area of this paper includes the UnitedStates west of 93°W in order to cover
EEC ; Geographical practice ; Pedagogy ; Regional economy ; Teaching of geography ; UnitedStates
A pedagogical unit designed to show students why the European Community was formed, emphasizing the themes of movement and regional change in response to economic forces. - (DWG)
Comparison of soils in midwestern UnitedStates and western Europe with the interglacial record
Western Europe and midwestern UnitedStates are best explained by relatively long interglaciations or the development of composite soils over a number of temperate periods. Climatic contrasts between the interglaciations appear to have been overemphasized
The effect of federal wilderness on county growth in the intermountain westernUnitedStates
Demographic change ; Economic impact ; Employment ; Land ; Mountain ; Regional economy ; Rocky Mountains ; UnitedStates of America ; Wilderness
The paper finds, for a sample of 250 nonurban counties in the eight states of the intermountain west, no evidence that the existence of federal wilderness is directly or indirectly associated with either population-density or total-employment
Holocene rock varnish microstratigraphy and its chronometric application in the drylands of western USA
Arid area ; Climatic variability ; Correlation ; Dating ; Desert ; Holocene ; Lithology ; Micromorphology ; Quaternary ; UnitedStates of America ; WesternUnitedStates
Analyses of hundreds of rock varnish samples from latest Pleistocene and Holocene geomorphic features in the drylands of western USA reveal a regionally replicable Holocene microlamination sequence. This radiometrically calibrated and climatically
correlated Holocene microlamination sequence was then used as a unique correlative dating tool to determine surface exposure ages of geomorphic and geoarchaeological features in western USA deserts. The results indicate that, when properly applied
, the varnish microlamination dating technique has the great potential to yield numerical age assignments for surface stone tools, petroglyphs, and geoglyphs of prehistoric age in the drylands of western USA.
Geographical practice ; Montana ; Research ; Teaching of geography ; UnitedStates ; University
This geography program evolved from strong links with geology since the 1940s. Its applied emphasis on landuse and environmental problems of Montana fits into the mold of many public universities in the Western USA. - (DWG)
Dating ; Geochronology ; K/Ar dating ; Methodology ; Pleistocene ; Quaternary ; UnitedStates of America ; Volcanic rock ; WesternUnitedStates
The objective of this study was to compare the results using both Ar techniques on Quaternary volcanic rocks from 3 areas of the westernUnitedStates : the Snake River Plain, Idaho, Mount Adams, Washington, and Crater Lake, Oregon. The samples
Characterizing the north pacific jet stream for understanding historical variability in westernUnitedStates winter precipitation
Atmospheric circulation ; Climate oscillation ; Climatic variability ; ENSO ; Ocean atmosphere interaction ; Precipitation ; Teleconnection ; UnitedStates of America ; Weather type ; WesternUnitedStates ; Winter
The AA. examined historical winter-season relationships among precipitation across the westernUnitedStates, the northern Pacific jet stream (NPJ) across the northern Pacific Ocean basin, and the El Niño-Southern Oscillation (ENSO) phenomenon
to determine if the NPJ significantly adds to the existing ENSO-based understanding of inter-annual variability in precipitation. The results indicate that the NPJ is significantly related to winter precipitation across a much larger area of the westernUnited
States than the ENSO signal. For areas where the ENSO signal is significantly related to precipitation, there generally exists a stronger or more consistent NPJ-precipitation relationship. The results indicate that there is value in considering seasonal
Extensive early and middle Wisconsin glaciation on the Western Olympic Peninsula, Washington, and the variability of Pacific moisture delivery to the Northwestern UnitedStates
C 14 dating ; Geomorphology ; Glaciation ; Glacier advance ; Palaeogeography ; Palynology ; Quaternary ; Stratigraphy ; UnitedStates of America ; Washington State ; Wisconsinan
Avancée du glacier ; Datation C 14 ; Etats-Unis ; Glaciation ; Géomorphologie ; Olympic Mountains ; Palynologie ; Paléogéographie ; Quaternaire ; Stratigraphie ; Washington State ; Wisconsinien
Large glaciers descended western valleys of the Olympic Mountains six times during the last (Wisconsin) glaciation, terminating in the Pacific coastal lowlands. The glaciers constructed extensive landforms and thick stratigraphic sequences, which
Fiscalisation of land use, urban growth boundaries and non-retail sprawl in the WesternUnitedStates
Decentralization ; Economies of scale ; Land use ; Local finance ; Location ; Retail trade ; UnitedStates of America ; Urban area ; Urban growth ; WesternUnitedStates