نتایج جستجو برای: a worldwide typical landform for aeolian erosion

تعداد نتایج: 16100361  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و زبانهای خارجی 1390

bserved by many teachers that most of the time, mumbling and searching for their intended words, students complain why they have forgotten the words they have learned in the previous semesters. they ask for some new ways that may help them to recall and apply the learned words more efficiently, since as they declare one of the most important skills in foreign language learning is having a g...

Journal: :Geo-marine Letters 2021

Transverse sand dunes located within the supratidal zones of beaches are a significant geomorphic feature along sand-dominated coasts worldwide and generated by strong alongshore winds in areas high sediment availability. present South African coast, these known to migrate dynamically response wind forcing. However, detailed dynamics individual dune systems same coastal stretch have not been co...

Journal: :Environmental Modelling and Software 2008
Bernhard Klingseisen Graciela Metternicht Gernot Paulus

This paper presents LANDFORM, a customized GIS application for semi-automated classification of landform elements, based on topographic attributes like curvature or elevation percentile. These parameters are derived from a Digital Elevation Model (DEM) and used as thresholds for the classification of landform elements like crests, flats, depressions and slopes. With a new method, slopes were fu...

Journal: :international journal of geo science and environmental planning 0
a. gorbani associate professor of natural resources, university of mohaghegh ardabili m.h. fathi phd candidat in geomorphology, university of mohaghegh ardabili

volcanic landform can be as terrain legacies from the past to the present era be considered. these heritage of land in terms of their unique characteristics can be considered as geomorphosite in the scientific community and the public. the evaluation of resources is one of the most important tasks of geotourism research.and thereby become profitable and thriving tourism industry in their own di...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2015
Wade A Ryberg Michael T Hill Charles W Painter Lee A Fitzgerald

Irreplaceable, self-organizing landforms and the endemic and ecologically specialized biodiversity they support are threatened globally by anthropogenic disturbances. Although the outcome of disrupting landforms is somewhat understood, little information exists that documents population consequences of landform disturbance on endemic biodiversity. Conservation strategies for species dependent u...

Journal: :Land 2023

This study was part of a project designed to simulate the long-term landform equilibrium rehabilitated mine site. The utilized event Fine Suspended Sediment (FSS) fluxes in receiving stream following rainfall as an indicator stability. aim this use HEC-HMS determine sediment and discharge quantity upstream how it affects downstream development catchment landform, terms changes geomorphology. Th...

Journal: :Journal of South American Earth Sciences 2021

The aim of this study was to record the changes in Cafayate region, Northwestern Argentina, over last 50 years (1969–2019), with a focus on fluvial and dune systems, together human activity. multi-temporal analysis different kinds remote sensor images field surveys allowed us establish that final section Santa María River shows meandering channel whose arrangement morphology have substantially ...

2005
Kenneth LepperT Gregory F. Scott

This investigation uses a multidisciplinary approach including geomorphic surface mapping, soil stratigraphic analysis, radiocarbon dating and optically stimulated luminescence (OSL) dating to investigate the chronology of soil formation and aeolian activation periods recorded in ridge dune deposits as well as the spatial variability of aeolian processes during active aeolian episodes. This stu...

Journal: Desert 2009
M. Ekhtesasi N. Mashhadi

Wind, in the duration of its erosional process, affects considerable changes in a grain's morphologyfrom its removal (detachment) step to sedimentation. In other word, a grain undergoes its gradualevolution during the transit process. In this project, the maturation of Aeolian sand grains had beenstudied upon as based on texture maturity indicator which includes: sorting, mean size grain, round...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

chapter one is devotod to collect some notion and background informations, which are needed in the next chapters. it also contains some important statements which will be proved in a more general context later in this thesis. in chapter two, we show that if the marginal factor-group is of order np1...pk,n>1, then we obtain a bound for the order of the verbal subgroup. also a bound for the bear-...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید