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Portail d'information géographique

Résultats de la recherche (8 résultats)

Fingered flow: the creator of sand columns in dune and beach sands

Sand columns, sand cones, sand mushrooms and other striking sand forms are frequently observed in the Dutch and German beach and dune sands. The objective of this study is to describe, explain and illustrate the origin of sand columns in bare dune
1994

The evolution of potholes in granite bedrock, W Spain

Spectacular bed forms, eroded by flood flows, are a feature of the bare rock terraces and channels of some rivers cut into granitic rock in the districts of Salamanca, Cáceres and Badajoz, W Spain. The bed forms comprise a range of pothole types
1994

Découvertes de nouvelles moraines faillées dans l'Apennin Central (Italie)

faille d'au moins 20 m de rejet ; dans les Sibillini (Apennin ombro-marchesan) où le lac de Pilato est barré par un abrupt de faille de 15 m de haut dans une moraine latérale de retrait. Ces nouvelles observations attestent l'ampleur de la tectonique post
1994

Porówanie wartości strumienia ciepła w glebie wyznaczonych dwoma sposobami

) and 2) method of direct measurements of the soil heat flux density by fluxmeters (soil heat plates) are presented. These investigations were carried out on a bare field of chernozem (without vegetation) in Moldova in August 1989. Statistical
1994

Struktura bilansu cieplnego powierzchni pola czarnoziemu (na przydładzie badań ekspedycyjnych w Mołdawii)

at the measurement point, situated on the bare ploughed field with the haplic chernozem soil. - (DG)
1994

Gully headcuts as sediment sources on the Njemps Flats and initial low-cost gully control measures

A partial sediment budget is developed from measurements of catchment sediment input, headcut recession and channel sediment discharge during 9 low-moderate size rainstorms for a gully headcut incised into the bare low angle alluvial Njemps Flats
1994

Frontières naturelles, frontières artificielles et circulation en Europe

BARRÉ, A.
1994

Effect of viewing geometry on remotely sensed net radiation measurements for vegetated and non-vegetated surfaces

of albedo and surface temperature into the surface radiation budget equation. Two contrasting surfaces, one vegetated and one bare, were evaluated at seven view angles and five azimuth angles. The remote net radiation measurements for each combination
1994