Results 41 to 50 of about 51,747 (166)

Automatic detection and delineation of karst terrain depressions and its application in geomorphological mapping and morphometric analysis

Acta Carsologica, 2013
Digital elevation models (DEM) are digital representations of topography that are especially suitable for numerical terrain analysis in earth sciences and engineering. One of the main quantitative uses of DEM is the automatic delineation of flow networks
Eulogio Pardo-Igúzquiza, Juan José Durán Valsero, Peter A. Dowd   +2 more
doaj   +1 more source

Saddle Position-Based Method for Extraction of Depressions in Fengcong Areas by Using Digital Elevation Models

ISPRS International Journal of Geo-Information, 2018
A karst depression is an important sign of the development stage of karst landforms. The morphological characteristics of depressions can help reflect the development and evolution process of such landforms.
Xianwu Yang, Guoan Tang, Xin Meng, Liyang Xiong   +3 more
doaj   +1 more source

Assessment of climatic extremes over Northeast and West Coast regions of India

Geoadria, 2015
Extreme weather and climate variability have become a subject of big concern worldwide. In response, efforts have been made to evaluate the trends in climatic parameters in two geographical regions of India – Northeast (NER) and West coast region (WCR ...
Tongdi Jamir, G. Krishna Kumar
doaj  

SALINITY OF SOILS OF INTERMOUNTAIN DEPRESSIONS IN THE DESERTS OF THE ZALTAI GOBI OF MONGOLIA

Бюллетень Почвенного института им. В.В. Докучаева, 2010
Intermountain depressions (depressions) are a characteristic feature of Zaaltai Gobi landscapes in Mongolia. There are three types of depressions, each of which is characterized by peculiarities of soil structure and specificity of soil salinity.
E. Pankova
doaj   +1 more source

Effects of depressions and drainage systems on soybean (Glycine max (L.) Merill) growth during the early growth stages under excess water stress conditions

Plant Production Science
Soybean (Glycine max (L.) Merill) productivity is severely compromised under conditions of excess water, particularly during the early growth stages. Depressions in converted paddy fields are believed to significantly contribute to excess water stress ...
Rintaro Kondo, Soshi Tanaka, Kazuhiko Fujisao, Hirotake Miyaji   +3 more
doaj   +1 more source

UAS-LiDAR Mapping of Bog Microrelief Enhances Accuracy of Ground-Layer Phytomass Estimation

Drones
The accurate upscaling of peatland carbon stocks is fundamentally limited by fine-scale microrelief (hummocks/depressions), which has not yet been resolved by conventional satellite or field methods.
Danil V. Ilyasov, Anastasia V. Niyazova, Iuliia V. Kupriianova, Aleksandr F. Sabrekov, Alexandr A. Kaverin, Mikhail F. Kulyabin, Mikhail V. Glagolev   +6 more
doaj   +1 more source

Geomorphological study of the origin of Mongolian Altai Mountains Lake depressions: implications for the relationships between tectonic and glacial processes

Mongolian Geoscientist
The lake depressions in the Mongolian Altai Mountains, and the issues related to their formation have yet to be thoroughly examined in previous research. Previous studies primarily focused on the paleogeographical evolution and glaciation dynamics of the
Altanbold Enkhbold, Ulambadrakh Khukhuudei, Yeong Bae Seong, Yumchmaa Gonchigjav, Li Dingjun, Byambabayar Ganbold   +5 more
doaj   +1 more source

Dynamics of Small-Scale Topographic Heterogeneity in European Sandy Salt Marshes

Journal of Marine Science and Engineering, 2016
Heterogeneity can boost biodiversity, as well as increase the resilience of an ecosystem to changing environmental conditions; therefore, it is important to understand how topographic heterogeneity in ecosystems is formed.
Kelly Elschot, Jan P. Bakker
doaj   +1 more source

Positive and negative perfectionism and their relationship with anxiety and depression in Iranian school students

Journal of Research in Medical Sciences, 2011
Background: Although many studies have investigated the relationship between perfectionism, anxiety, and depres-sion among the adults, little is known about the manifestations of perfectionism among school-age youths.
Hamid Afshar, Hamidreza Roohafza, Masoumeh Sadeghi, Alireza Saadaty, Mehrdad Salehi, Masoud Motamedi, Mohammad Matinpour, Homayoun Naji Isfahani, Ghorbanali Asadollahi   +8 more
doaj  

A model of depression

PSL Quarterly Review, 2013
Some economists suggest that macroeconomic theory is incomplete because it has neglected to construct a model of instability. The author contends that a theory of depression must provide information on an economy's ability to resist depressions most of ...
P. GRAY
doaj   +1 more source