Results 81 to 90 of about 10,045,006 (209)

Effect of land use types on stream water quality under seasonal variation and topographic characteristics in the Wei River basin, China

open access: yes, 2016
The effect of topographic characteristics of land uses on stream water quality must be addressed for a better understanding of the complex relationship between land use and stream water quality.
Yu, Songyan   +3 more
core   +1 more source

Analytical formulation of topographic effects in the second geodetic boundary value problem

open access: yesJournal of Geodetic Science
The second geodetic boundary value problem plays an important role in physical geodesy, as complex mountainous terrain significantly affects its solution, making accurate computation of topographic effects essential for generating a high-precision geoid.
Duan Hurong   +3 more
doaj   +1 more source

Special map [cartographic material] : Muko Jima /

open access: yes, 1945
Topographic map set of Muko Island, in the Bonin Island chain, south of Japan, showing Japanese defences. Relief shown by contours and spot heights.; "Photography from Navy Sorties, 1,2 Sept.
United States. Army. Engineer Topographic Battalion, 64th.
core  

[South Australia] 1: 50 000 topographic series /

open access: yes, 1968
Various editions. Topographic map series of South Australia. Relief shown by contours and spot heights.; Being part of: Australia 1:50 000 topographic series. Produced in conjunction with the Royal Australian Survey Corp, Defence Agencies and other State
South Australia. Department of Lands, cartographer.
core  

Lebanon 1:50,000 [cartographic material] /

open access: yes, 1977
Various ed. Topographic map series of Lebanon showing international and administrative boundaries, roads, railways, water features and built-up areas. Relief shown by soundings, contours and spot heights.; "Soundings in meters".; Some sheets with series ...
United States. Defense Mapping Agency. Topographic Center.
core  

Design space reduction in optimization using generative topographic mapping

open access: yes, 2009
Dimension reduction in design optimization is an extensively researched area. The need arises in design problems dealing with very high dimensions, which increase the computational burden of the design process because the sample space required for the ...
Keane, Andy   +2 more
core   +1 more source

Special map [cartographic material] : Haha Jima /

open access: yes, 1945
Topographic map set of Hahashima Retto island group in the Bonin Islands, Japan. Shows vegetation and Japanese defences. Relief shown by contours and spot heights.; "Photography from Navy Sorties, 15 June, 5 Aug., 1 Sept.
United States. Army. Engineer Topographic Battalion, 64th.
core  

Use of plan curvature variations for the identification of ridges and channels on DEM [PDF]

open access: yes, 2006
This paper proposes novel improvements in the traditional algorithms for the identification of ridge and channel (also called ravines) topographic features on raster digital elevation models (DEMs). The overall methodology consists of two main steps: (1)
Rana, S.
core  

Effect of scan repetition on the reproducibility of optic nerve head topographic measurements with the Top SS

open access: yes, 2004
Purpose: To determine the effect of scan repetition during a single visit for improved reproducibility of optic nerve head topographic ...
Orhan, M   +9 more
core   +1 more source

Fast report: preliminary analysis of coseismic landslides in the 2025 M6.4 Dapu earthquake

open access: yesTerrestrial, Atmospheric and Oceanic Sciences
After the 2025 M6.4 Dapu earthquake, the Agency of Rural Development and Soil and Water Conservation (ARDSWC) identified 29 coseismic landslides using Sentinel-2 and PlanetScope satellite imagery.
Yi-Yu Li, Chun-En Lin, Chen-Yu Chen
doaj   +1 more source

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