Ground beetles on Mt. Usu six years after the 1977-78 eruptions
Survey made of the ground beetles on and around Mt. Usu which had suffered vegetational damage from volcanic eruptions in 1977-78. A total of 2485 specimens of 29 species were collected.
Frozen ground monitoring (2004-2006) in the source area of the Yellow River, China
China ; Climatic warming ; Ground freezing ; Groundsurvey ; Mountain ; Periglacial features ; Permafrost ; Seasonal variation ; Soil temperature ; Temperature ; Tibet
Ground thermal and hydrological regimes at Madoi (4273m ASL), northeastern Tibetan Plateau, are described on the basis of 2 years of automatic and manual observations of air and ground temperatures, precipitation, snow depth, soil moisture
and groundwater level. Extrapolation of the mean annual ground temperatures suggests that permafrost is unlikely present below an unfrozen talik, while it possibly disappeared within the last few decades. Soil moisture and groundwater level primary vary
Airborne bathymetric LiDAR was collected for 220 river kilometers in the Yakima and Trinity River Basins in the USA. Concomitant with the aerial data collection, groundsurveys of the river bed were performed in both basins. The AA. assess
to groundsurveys for magnitude and spatial variation.
the quality of the bathymetric LiDAR survey from the perspective of its application toward creating accurate, precise and complete streambed topography for numerical modelling and geomorphological assessment. Measurement error is evaluated with respect
Mapping the spatial distribution of geomorphological processes in the Okstindan area of northern Norway, using Geomorphic Process Units as derived from remote sensing and groundsurvey
and these were derived from the combination of Landsat satellite imagery (TM and ETM+) with stereo aerial photographs (used to construct a Digital Elevation Model) and groundsurvey. The Okstindan study area is sub-arctic and mountainous and is dominated
Ground radiometry and airborne multispectral survey of bare soils in The Natural Environment Research Council's Airborne Thematic Mapper campaigns 1983 and 1984.
Ground penetrating Radar applied to the study of peat bogs and moors
Ground Penetrating Radar (GPR) is a shallow geophysical exploration technique based on the reflection of electromagnetic impulses. It gives a continuous image of the subsurface, like reflection seismics. The strong attenuation of radar waves in most
soils is a major limitation. Peat however has very favourable electrical characteristics resulting in low attenuation and excellent results are obtained from GPR surveys. Several examples Southern Belgium are discussed showing the wide range of possible
Seasonal changes in ground-penetrating radar signature observed at a polythermal glacier, Bylot Island, Canada
This paper presents the results of 3 ground-penetrating radar (GPR) surveys conducted, in 2002, over the course of a summer ablation season at a polythermal glacier, Stagnation Glacier, Bylot Island, in the Canadian Arctic. The AA. compare
Intensive cooling through an open-work blocky layer : ground temperature monitoring in the Swiss Alps
Alps (The) ; Groundsurvey ; Mountain ; Periglacial features ; Permafrost ; Rock glacier ; Slope gradient ; Snow cover ; Soil temperature ; Switzerland
This paper presents the results of two-year monitoring of ground temperatures on two kinds of alpine ground surfaces, a rock glacier and a soil slope in the Upper Engadin, Swiss Alps. The monitoring sites lie close to the regional lower limit
Arctic Region ; Cold area ; Comparative study ; Creep ; Geodesy ; Global Positioning System ; Groundsurvey ; Permafrost ; Rock glacier ; Svalbard
The results from new global positioning system (GPS) surveys in 1998 and 2000 show, that errors exist in the results from terrestrial surveys in 1996. The published displacement values of Berthling et al. (1998) are too large. This note corrects
Morphological analysis of the Sudd region using land survey and remote sensing data
of ground slopes and morphological features on spill and flooding of the seasonally flooded grasslands. Through bathymetric surveys and analysis of Landsat images, depth profiles and cross-sectional depth and flow distributions were established. Data from
An analysis of the vast wetland of the Sudd swamps in southern Sudan was designed to assess and describe interdependencies between morphology and hydrology. Findings based on field survey and remote sensing data include an assessment of the effect
remote sensing, field survey and historical sources were correlated and correction factors established; the SRTM was found to be partly unsuitable for further assessments. Further analysis of remote sensing data was used to investigate the Sudd's inland
Interannual changes in seasonal ground freezing and near-surface heat flow beneath bottom-fast ice in the near-shore zone, Mackenzie Delta, NWT, Canada
Canada ; Delta ; Ground freezing ; Ground ice ; Heat flow ; Interannual variability ; Nearshore zone ; Northwest Territories ; Periglacial features ; Permafrost ; Seasonal variability ; Surface temperature ; Water
Interannual changes in seasonal ground freezing and near-surface heat flow beneath zones of bottom-fast ice (BFI) were examined over the winters of 2005–06 and 2006–07 within the near-shore zone of the Mackenzie Delta. Winter variability in ground
thermal conditions was determined at 3 monitoring sites. When comparing conditions over the two winters, 2005–06 was characterised by a decrease in ice thickness that limited the extent of BFI and seasonal cooling of the ground. These changes in ice
[b3] Geological Survey of Canada (Atlantic), Natural resources, Dartmouth, Canada
Long-term rates of mass wasting in Mesters Vig, northeast Greenland : notes on a Re-survey
Climatic warming ; Cold area ; Gelifluction ; Global change ; Greenland ; Groundsurvey ; Mass movement ; Slope ; Slope gradient
Re-surveys of surviving mass-wasting target lines established by A.L. Washburn in the late 1950s in the Mester Vig area, northeast Greenland, are used to derive estimates of long-term mass wasting in the area. These long-term rates suggest a general
Geophysical surveys designed to delineate the altitudinal limit of mountain permafrost : an example from Jotunheimen, Norway
Cold area ; Geophysics ; Groundsurvey ; Mountain ; Norway ; Periglacial features ; Permafrost ; Snow cover ; Spatial distribution ; Temperature
permafrost. The good agreement with temperature-based methods validates empirical approaches such as the relation between bottom temperature of snow cover (BTS) and permafrost occurences, and further supports the findings from the geophysical surveys.