Remote sensing of sediment transfer processes in playa basins

This article assesses the potentially powerful combination of remotely sensed data and soil-vegetation-atmosphere transfer (SVAT) schemes. SVATS represent the hydrological processes occurring at the land surface and can be used to estimate, among other processes, the exchange of water and energy between the soil, vegetation and the atmosphere. They require information about the interaction of radiation with the soil and vegetation. Bidirectional reflectance models are now starting to be used to determine the partitioning of radiation. An example of the combination of a simple geometric optics model of bidirectional reflectance and computer graphics is given, where simulations of remotely sensed scenes are produced. The next step is to couple these models to a SVAT scheme. The output of a SVAT scheme can also be used to drive radiative transfer models at different wavebands. This approach is illustrated by the estimation of soil hydraulic properties using a time series of passive microwave emission observations.

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A Geomorphological Map as a Tool for Assessing Sediment Transfer Processes in Small Catchments Prone to Debris-Flows Occurrence

Developments in Earth Surface Processes - Geomorphological Mapping - Methods and Applications ◽

10.1016/b978-0-444-53446-0.00016-1 ◽

2011 ◽

pp. 443-458 ◽

Cited By ~ 2

Author(s):

David Theler ◽

Emmanuel Reynard

Keyword(s):

Debris Flows ◽

Transfer Processes ◽

Geomorphological Map ◽

Sediment Transfer ◽

Small Catchments

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Starting a programme for research and monitoring of sediment transfer processes in the periglacial zone of Bulgaria (Bulgarian Periglacial Programme)

Norsk Geografisk Tidsskrift - Norwegian Journal of Geography ◽

10.1080/00291950802095152 ◽

2008 ◽

Vol 62 (2) ◽

pp. 132-134

Author(s):

Emil M. Gachev

Keyword(s):

Transfer Processes ◽

Periglacial Zone ◽

Sediment Transfer

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Erosion and sediment transfer processes at the front of rapidly moving rock glaciers: Systematic observations with automatic cameras in the western Swiss Alps

Permafrost and Periglacial Processes ◽

10.1002/ppp.1960 ◽

2017 ◽

Vol 29 (1) ◽

pp. 21-33 ◽

Cited By ~ 12

Author(s):

Mario Kummert ◽

Reynald Delaloye ◽

Luc Braillard

Keyword(s):

Swiss Alps ◽

Transfer Processes ◽

Rock Glaciers ◽

Sediment Transfer ◽

Western Swiss Alps

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Effect of Niacin on Mitochondria of Allium Cepa Root Cells

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100060404 ◽

1967 ◽

Vol 25 ◽

pp. 78-79

Author(s):

M. Arif Hayat

Keyword(s):

Nicotinamide Adenine Dinucleotide ◽

Hydrogen Transfer ◽

Nicotinamide Adenine Dinucleotide Phosphate ◽

Nicotinamide Adenine ◽

Root Tips ◽

Root Cells ◽

Transfer Processes ◽

Standard Procedures ◽

A Cell ◽

Critical Interest

Although it is recognized that niacin (pyridine-3-carboxylic acid), incorporated as the amide in nicotinamide adenine dinucleotide (NAD) or in nicotinamide adenine dinucleotide phosphate (NADP), is a cofactor in hydrogen transfer in numerous enzyme reactions in all organisms studied, virtually no information is available on the effect of this vitamin on a cell at the submicroscopic level. Since mitochondria act as sites for many hydrogen transfer processes, the possible response of mitochondria to niacin treatment is, therefore, of critical interest.Onion bulbs were placed on vials filled with double distilled water in the dark at 25°C. After two days the bulbs and newly developed root system were transferred to vials containing 0.1% niacin. Root tips were collected at ¼, ½, 1, 2, 4, and 8 hr. intervals after treatment. The tissues were fixed in glutaraldehyde-OsO4 as well as in 2% KMnO4 according to standard procedures. In both cases, the tissues were dehydrated in an acetone series and embedded in Reynolds' lead citrate for 3-10 minutes.

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