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--- elevacao [2012/05/03 17:05]
laercio
+++ elevacao [2015/11/20 11:03] (current)
laercio
@@ Line 2: / Line 2: @@
 === Autoria ===
 Laércio M. Namikawa - laercio@dpi.inpe.br
+<html>
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">Elevation Analysis</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://wiki.dpi.inpe.br/doku.php?id=elevacao&rev=1375816021" property="cc:attributionName" rel="cc:attributionURL">Laercio M. Namikawa</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.
+</html>
 ----
 Modelos Digitais de Elevação tem sido utilizados para diversas aplicações, mas a experiência tem demonstrado que o uso efetivo destes modelos deve ser melhorado com a consideração de aspectos como o uso de metadados, a verificação da confiabilidade da informação resultante e a influência das diferentes escalas. Portanto, o objetivo da **Análise de Elevação** é incluir o estudo destes aspectos, desenvolvendo pesquisas e algoritmos, de modo a ser um campo de estudo mais completo que a Modelagem Digital de Elevação. \\
 ===== Modelagem Digital de Terreno =====
 [[geopro:MDT|O que é o modelo digital de terreno]]?
+|  Superfíce Contínua  |{{elevacao:dem_surface.png?400}} \\ {{http://i.creativecommons.org/l/by-sa/3.0/80x15.png}}|Download \\ {{elevacao:dem_surface.svg|SVG }} \\ {{elevacao:dem_surface.pdf|PDF}} |
+<html>
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/80x15.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">DEM Surface</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://wiki.dpi.inpe.br/doku.php?id=elevacao&rev=1375816021" property="cc:attributionName" rel="cc:attributionURL">Laercio M. Namikawa</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.
+</html>
+\\
+|  Isolinhas  |{{elevacao:dem_contour.png?400}}\\ {{http://i.creativecommons.org/l/by-sa/3.0/80x15.png}}|Download  \\  {{elevacao:dem_contour.svg|SVG}} \\ {{elevacao:dem_scontour.pdf|PDF}}|
+<html>
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/80x15.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">DEM Contour</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://wiki.dpi.inpe.br/doku.php?id=elevacao&rev=1375816021" property="cc:attributionName" rel="cc:attributionURL">Laercio M. Namikawa</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.
+</html>
+|  Grade Regular  |{{elevacao:dem_grid.png?400}}\\ {{http://i.creativecommons.org/l/by-sa/3.0/80x15.png}}|Download  \\  {{elevacao:dem_grid.svg|SVG}} \\ {{elevacao:dem_grid.pdf|PDF}}|
+<html>
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/80x15.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">DEM Grid</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://wiki.dpi.inpe.br/doku.php?id=elevacao&rev=1375816021" property="cc:attributionName" rel="cc:attributionURL">Laercio M. Namikawa</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.
+</html>
+|  TIN  |{{elevacao:dem_tin.png?400}}\\ {{http://i.creativecommons.org/l/by-sa/3.0/80x15.png}}|Download  \\  {{elevacao:dem_tin.svg|SVG}} \\ {{elevacao:dem_tin.pdf|PDF}}|
+<html>
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/80x15.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">DEM TIN</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://wiki.dpi.inpe.br/doku.php?id=elevacao&rev=1375816021" property="cc:attributionName" rel="cc:attributionURL">Laercio M. Namikawa</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.en_US">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.
+</html>
+===== Research Topics Ideas =====
+==== MultiResolution Rectangular Grid Model ====
+=== Questions ===
+== Is it better than TIN? ==
+What is better? Less computer demanding - storage and processing.\\
+== Which Data Structure to use? ==
+What is available? Are there any OGC standards?
+== How to define the different resolutions and where they are? ==
+Can we use a variation of VIP algorithm?
 ===== Tópicos da Pesquisa =====
@@ Line 111: / Line 150: @@
 ----
 \\
@@ Line 162: / Line 202: @@
 shall be tested by comparing the elevations in the dataset with elevations of the same points as
 determined from an independent source of higher accuracy. \\
-A minimum of 20 check points shall be tested, distributed to reflect the geographic area of interest and the distribution of error in the dataset.4 When 20 points are tested, the 95% confidence level allows one point to fail the threshold given in product specifications.
+A **minimum of 20 check points** shall be tested, distributed to reflect the geographic area of interest and the distribution of error in the dataset.
+**Vertical Accuracy**
+Let: \\
+RMSEz = sqrt[ SUM(zdata i - zcheck i)^2 /n] \\
+where \\
+z data i is the vertical coordinate of the i th check point in the dataset. \\
+z check i is the vertical coordinate of the i th check point in the independent source of higher accuracy \\
+n = the number of points being checked \\
+i is an integer from 1 to n \\
+It is assumed that systematic errors have been eliminated as best as possible. If vertical error is normally distributed, the factor 1.9600 is applied to compute linear error at the 95% confidence level... Therefore, vertical accuracy, Accuracyz, reported according to the
+NSSDA shall be computed by the following formula: \\
+Accuracyz = 1.9600 *RMSEz.
 \\
@@ Line 200: / Line 250: @@
-==== PG-CAP 2011 ====
+==== PG-CAP 2014 ====
 [[http://wiki.dpi.inpe.br/doku.php?id=cap349/|CAP-349: Bancos de Dados Geográficos]]
@@ Line 285: / Line 337: @@
 JPL-NASA (2003). ASTER: Advanced Spaceborne Thermal Emission and Reflection Radiometer. 2003.
+SRTM DLR X_SAR
+http://www.dlr.de/eoc/en/Portaldata/60/Resources/dokumente/7_sat_miss/srtm_products_en.pdf\\
+http://www.dlr.de/eoc/en/Portaldata/60/Resources/dokumente/7_sat_miss/srtm_daten_download_en.pdf
 === ASTER ===
@@ Line 307: / Line 363: @@
 ----
-==== Dados Disponíveis ====
+==== Worldwide Data Availability - Dados Disponíveis DEM Globais ====
 === SRTM ===
 Topographic data acquired during the Shuttle Radar Topography Mission (SRTM), in February 2000, flew onboard Space Shuttle Endeavour. The SRTM radar contained two types of antenna panels, C-band and X-band. C-band data processed at the Jet Propulsion Laboratory and X-band processed and distributed by DLR. (JPL-NASA, 2002)
+== Download ==
+Research Data\\
+http://dds.cr.usgs.gov/srtm/version2_1/
 **Accuracy**
@@ Line 324: / Line 384: @@
   * vertical accuracy (absolute):  ±16m 90% vertical error
   * vertical accuracy (relative):  ±6m 90% vertical error
+== Download ==
+http://eoweb.dlr.de
 === ASTER ===
@@ Line 335: / Line 397: @@
   *  One study at a site in British Columbia(Canada) showed errors of 28 meters for 68% level of confidence and 51 meters for the 90 % level of confidence, with errors ranging from -151 to 167 meters, after eliminating mismatched areas and correcting lakes. (Toutin 2002)
+== Download ==
+http://gdem.ersdac.jspacesystems.or.jp/
 ----
+=== How-To ===
+[[SRTM_no_SPRING:Como importar dados SRTM para o SPRING]].
@@ Line 344: / Line 411: @@
 [[:elevacao:ingles2portugues|Tradução de termos do Inglês para o Português]]
+===== Aplicações =====
+[[:elevacao:aplichand|Aplicações do HAND (Distância Vertical à Drenagem Mais Próxima)]]

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