搜索结果: 1-15 共查到“理学 bedrock”相关记录16条 . 查询时间(0.067 秒)
Radio Echo Sounding (RES) investigations at Talos Dome (East Antarctica): bedrock topography and ice thickness
radio echo sounding radio glaciology ice thickness measurements
2015/9/17
Radio echo sounding measurements were collected during two Antarctic expeditions to determine the ice thickness
and the sub-glacial morphology of Talos Dome in the region around 72°48'S; 159°06'E (ab...
Spatial correlation between radon ( 222 Rn) in groundwater and bedrock uranium ( 238 U): GIS and geostatistical analyses
radon uranium groundwater bedrock GIS Kriging IDW
2014/11/12
This study describes approaches to create surface maps of radon in groundwater based on
measurements of radon (
222
Rn) in drilled bedrock wells at unevenly distributed sites and uranium
bedrock m...
Development and verification of conceptual models to characterize the fractured bedrock aquifer of the Nashoba terrane, Massachusetts
Discrete fracture network the DFN gil rock fabric lithology and underground water
2014/10/22
This dissertation is a composite of several studies. First, three of the most common fracture sampling techniques are tested against each other to evaluate the effectiveness of each method to adequate...
University of California, Berkeley, geologist William Dietrich pioneered the application of airborne LIDAR – light detection and ranging – to map mountainous terrain, stripping away the vegetation to ...
Experimental study on coarse grain saltation dynamics in bedrock channels
Experimental study coarse grain saltation dynamics bedrock channels
2014/4/8
Saltation of bed load particles on bedrock surfaces is important for landscape evolution and bedrock incision in steep landscapes. However, few studies have investigated saltation in bedrock channels ...
Sediment storage by vegetation in steep bedrock landscapes: Theory, experiments, and implications for postfire sediment yield
Sediment storage by vegetation steep bedrock landscapes Theory experiments implications postfire sediment yield
2014/4/8
Mechanistic models for sediment transport on hillslopes are needed for applications ranging from landscape evolution to debris-flow hazards. Progress has been made for soil-mantled landscapes; however...
A discrete random model describing bedrock profile abrasion
discrete random model bedrock profile abrasion Geophysics
2011/8/4
Abstract: We use a simple, collision-based, discrete, random abrasion model to compute the profiles for the stoss faces in a bedrock abrasion process. The model is the discrete equivalent of the gener...
Rapid formation of a modern bedrock canyon by a single flood event
Rapid formation modern bedrock canyon single flood event
2014/4/8
Deep river canyons are thought to form slowly over geological time (see, for example, ref. 1), cut by moderate flows that reoccur every few years2,3. In contrast, some of the most spectacular canyons ...
Fracture lineaments and their surroundings with respect to groundwater flow in the bedrock of Sunnfjord,Western Norway
Fracture lineaments surroundings groundwater flow bedrock of Sunnfjord
2009/12/3
Assumptions about groundwater flow based on observations from single-well test sites and a multi-well test site were evaluated by statistical methods on a regional data set of borehole flow rates and ...
Estimation of Transmissivity and Permeability in Swedish Bedrock
Estimation Transmissivity Permeability Swedish Bedrock
2009/10/29
Statistical analysis of pumping-test data from wells have been used to calculate
average values of transmissivity and permeability in different Swedish rocks. The
influence of the well-loss on the c...
Interaction between Bedrock and Precipitation at Temperatures Close to 0°C
Interaction Bedrock Precipitation Temperatures Close to 0°C
2009/10/29
After a long period of snow melting and leaching, samples of snow and
meltwater were collected. Chemical analysis revealed that the water composition
changed radically during flow across the bedrock...
PROBLEMS IN ASSESSING GROUNDWATER RESOURCES IN BEDROCK AQUIFERS, ERITREA
GROUNDWATER RESOURCES ERITREA BEDROCK AQUIFERS
2009/10/13
The problems associated with bedrock aquifers are discussed in reference to an unusual groundwater condition observed in the study area. To understand and explain the problem, a geologic and hydrogeol...
Bedrock Depth Mapping of the Coast South of İstanbul: Comparison of Analytical and Experimental Analyses
site response microtremor resonance frequency bedrock depth İ stanbul
2009/7/7
Local S-wave velocity-depth profiles and bedrock depth distribution are key factors in assessing seismic hazard and earthquake ground motion characteristics since they allow determination of the ampli...
Evaluation of the ground surface Enthalpy balance from bedrock temperatures (Livingston Island,Maritime Antarctic)
ground surface Enthalpy balance bedrock temperatures Livingston Island
2010/2/3
The annual evolution of the ground temperatures from Incinerador borehole in Livingston Island (South Shetlands, Antarctic) is studied. The borehole is 2.4 m deep and is located in a massive quartzite...
Bedrock Depth Mapping of the Coast South of İstanbul:Comparison of Analytical and Experimental Analyses
site response microtremor resonance frequency bedrock depth İ stanbul
2010/1/11
Local S-wave velocity-depth profiles and bedrock depth distribution are key factors in assessing seismic hazard and earthquake ground motion characteristics since they allow determination of the ampli...