The use of magnetic field excursions in stratigraphy
The aim of this essay is to provide an overview of the fundamental concepts involving the identification of excursions and their use in stratigraphy. The AA. will focus on the structure of the geomagnetic field and on the properties of this field
Estimating topsoil organic matter content in two experimental fields in Denmark using multi-spectral aerial imagery and topographic data
Danish fields. The results show that the spectral reflectance data obtained within the visible and near infrared range are correlated with the SOM content in both fields, and that the spectral bands are almost co-linear. The results also revaled
that the data used in the investigation were insufficient to properly describe the variations of SOM within the fields.
Factors controlling carbonate dissolution rates quantified in a field test in the Austrian alps
Alps (The) ; Austria ; Carbonate ; Carbonate dissolution ; Field experiment ; Geochemistry ; Glacier mass balance ; Karst ; Lithology ; Watershed
data, and limestone pedestals. For the field test, 70 carbonate tablets were exposed to natural dissolution for 1 year, over 13 sites on the north slope of the Hochschwab Massif in the Austrian Alps. The influences of altitude, subsoil vs. sub-aerial
The form and function of headwater streams based on field and modeling investigations in the southern Appalachian Mountains
To further investigate the form and function of small headwater streams, the AA. have conducted a combined field and modeling study of channels from a variety of boundary conditions in the southern Appalachian Mountains. Channel morphologies
and other characteristics were documented with field surveys, and rainfall-runoff modeling was used to simulate 2-year and bankfull discharge recurrence, erosive power and competence for specific channel hydraulic geometries. Results indicate considerable
Basic information on second housing of population in Czechia. Its structure was completed prior to the 90s. An empirical part deals with field and inquiry research into regional differentiation and results into a tentative typology of fields
Mapping soils, vegetation, and landforms : an integrative physical geography field experience
Cartography ; Ecology ; Field experiment ; Integrated study ; Michigan ; Pedagogy ; Soil ; Teaching of geography ; United States of America ; Vegetation dynamics
Weathering and pedogenesis in the Sila Grande Massif (Calabria, South Italy) : from field scale to micromorphology
Six soil profiles in the area around the Cecita Lake, representative of different geomorphological units, were characterised by field work, optical microscopy and SEM-EDS analysis. A strong influence on weathering and pedogenesis by micro-scale
On-site effects of concentrated flow erosion in vineyard fields : some economic implications
elevation models, DEMs). In the case study, 0.20-m spatial resolution DEMs of March 2000, June 2000 and July 2002 were used to assess the changes in a vineyard field, located in the Penedès region, Catalonia, in which there are hillside ditches (broadbase
The study generally shows a medium interest in geoscientific fields of subject with school boys and girls. The most interesting topics are those that are related to human beings and to life/living beings or environmental threat. Concerning special
in raising the student's interest in these fields. - (IFL)
Dammed lake ; Field experiment ; Poland ; Valley ; Watershed
Detailed queries among archival materials combined with field studies to permit a reconstruction of locations, sizes and times in existence for a few dozen valley-located reservoirs within the basin of a small lowland river in Central Poland
in determining suspended sediment concentration is determined using bulk field sediment in the laboratory, and its field performance assessed from a network installed for one ablation season in 2 proglacial streams at Small River Glacier in the Canadian Rockies.
This study aims to develop a physically based model that incorporates all water erosion controlling processes in a Sahelian environment. The model is calibrated and tested with field data from the 2001 rainy season in the Katacheri catchment
, and erosion and deposition by inter-rill processes over the land surface in individual storms at the scale of both runoff plots and fields.