نتایج جستجو برای: srtm

تعداد نتایج: 937  

2011
H. I. Reuter Peter Strobl Wolfgang Mehl

A DEM is one of the most useful information for spatial modelling and monitoring. Several DEMs have been published in the public domain like SRTM and ASTER GDEM with and without considering the horizontal and vertical misallocation of single input data. Results of that are for example the inherent errors in the ASTER GDEM V1 dataset as well as the known striping in the SRTM dataset. Therefore, ...

2013
Harry Bunt Alex C. Fang Xiaoyue Liu Jing Cao Volha Petukhova

This paper analyzes the issues that arise when trying to add annotations to the dialogues in the Switchboard corpus according to ISO standard 24617-2, exploiting the existing SWBD-DAMSL annotations. These issues relate to differences between the two tag sets; to the highly multidimensional view that underlies the ISO standard; to differences in segmenting the dialogues into functional units; to...

Journal: :International Journal of Geoinformatics 2021

Nowadays, like many other fields, DEM is widely used in the field of hydraulic engineering. In our studies, we compared DEMs (SRTM, ASTER GDEM v2, and ALOS PALSAR) for area recommended construction Shurbulak water reservoir. Contours were developed all with contours a topographic map. The SRTM PALSAR closely match on map than ASTER. Vertical differences between SRTM, GDEM2, products computed ro...

Journal: :Remote Sensing 2017
Zhihua Hu Jianwei Peng Yaolin Hou Jie Shan

The recent release of worldwide SRTM 1 DEM and AW3D30 adds new members to the open global medium resolution (90–30 m ground spacing) digital elevation models. Together with the previously existing SRTM 3 and ASTER GDEM, their quality is of great interest to various scientific applications. This paper uses 1:50,000 DEM in Hubei Province of China as a reference to assess their vertical accuracy i...

Journal: :NeuroImage 2003
Yun Zhou Christopher J Endres James Robert Brasić Sung Cheng Huang Dean F Wong

For the quantitative analysis of ligand-receptor dynamic positron emission tomography (PET) studies, it is often desirable to apply reference tissue methods that eliminate the need for arterial blood sampling. A common technique is to apply a simplified reference tissue model (SRTM). Applications of this method are generally based on an analytical solution of the SRTM equation with parameters e...

2008
Manoj Karkee Brian L. Steward Samsuzana Abd Aziz

* Corresponding author. E-mail address: [email protected] (B. 1537-5110/$ – see front matter a 2008 IAgrE doi:10.1016/j.biosystemseng.2008.09.010 Digital Elevation Model (DEM) fusion was investigated for improving the overall accuracy of DEMs. The approach was applied to two public domain products: Shuttle Radar Topographic Mission (SRTM) DEM and Advanced Spaceborne Thermal Emission and Refl...

Journal: :Ecological Informatics 2011
Luiz Rogério Mantelli Jomar Magalhães Barbosa Marisa Dantas Bitencourt

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Decision makers are frequently involved in projects requiring ecological risk definiti...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2009
Lisbeth Marner Nic Gillings Robert A Comley William F C Baaré Eugenii A Rabiner Alan A Wilson Sylvain Houle Steen G Hasselbalch Claus Svarer Roger N Gunn Marc Laruelle Gitte M Knudsen

UNLABELLED The serotonin 4 receptor (5-HT(4) receptor) is known to be involved in learning and memory. We evaluated for the first time the quantification of a novel 5-HT(4) receptor radioligand, (11)C-SB207145, for in vivo brain imaging with PET in humans. METHODS For evaluation of reproducibility, 6 subjects were scanned twice with (11)C-SB207145 on the same day. A further 2 subjects were sc...

2007
Adina E. Racoviteanu William F. Manley Yves Arnaud Mark W. Williams

This paper evaluates the suitability of readily available elevation data derived from recent sensors – the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Shuttle Radar Topography Mission (SRTM) – for glaciological applications. The study area is Nevado Coropuna (6426 m), situated in Cordillera Ampato of Southern Peru. The glaciated area was 82.6 km in 1962, based...

2006
T. Bernardes I. Gontijo H. Andrade T. G. C. Vieira H. M. R. Alves

The objective of this work is to define procedures to improve spatial resolution of SRTM data and to evaluate their applicability in the Serra Negra region, in the district of Patrocínio, state of Minas Gerais in Brazil. The region's structure is a result of past tectonic processes that have arched it into a dome shape. Besides the already existing agriculture exploitation, Serra Negra also has...

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