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New Version of the ASTER GDEM Earthdat

The ASTER GDEM covers land surfaces between 83°N and 83°S, and was produced through automated processing of 2.3 million scenes from the ASTER archive. ASTER GDEM Version 3 shaded relief topography of San Francisco, California, USA. Image: NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team. The first ASTER GDEM was released in 2009, with Version 2 being released in 2011 aster gdem The ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) instrument was built by METI and launched onboard NASA 's Terra spacecraft in December 1999. It has an along-track stereoscopic capability using its near infrared spectral band and its nadir-viewing and backward-viewing telescopes to acquire stereo image data with a base-to-height ratio of 0.6 The ASTER GDEM is a joint contribution by NASA and the Ministry of Economy, Trade and Industry of Japan (METI) to the Global Earth Observation System of Systems (GEOSS). As such, both METI and NASA desire to understand the uses of the ASTER GDEM, expressed as one the GEOSS applications themes: disasters, health, energy, climate, water, weather. The development of the ASTER GDEM data products is a collaborative effort between National Aeronautics and Space Administration (NASA) and Japan's Ministry of Economy, Trade, and Industry (METI). The ASTER GDEM data products are created by the Sensor Information Laboratory Corporation (SILC) in Tokyo This tutorial shows you how to download ASTER Digital Elevation Model (DEM) data for free from the following website Website: https://search.earthdata.nasa.g..

ASTER GDEM. Globální výškový model ASTER GDEM (Global Digital Elevation Model) vznikl ve spolupráci japonského Ministerstva ekonomie, obchodu a průmyslu (METI) a americké kosmické agentury (NASA) a je dostupný zdarma všem zájemcům.. ASTER, po kterém je tento produkt pojmenován, je multispektrální barevný skener (Advanced Spaceborne Thermal Emission and Reflection Radiometer. ASTER Global Digital Elevation Model. SRTM3 vs. ASTER comparison , inaccuracies and errors of the latter are indicated by arrows. Version 1. On 29 June 2009, the Global Digital Elevation Model (GDEM) was released to the public. A joint operation between. The ASTER GDEM covers land surfaces between 83°N and 83°S and comprises 22,912 1° by 1° tiles. Tiles that contain at least 0.01% land area are included. The ASTER GDEM is distributed in GeoTIFF file format with Geographic latitude/longitude coordinates and a 1 arc-second (30 m) grid of elevation postings

ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) is a high resolution imaging instrument that is flying on the Terra satellite. ASTER will obtain detailed maps of land surface temperature, emissivity, reflectance and elevation of the Earth Your browser is out of date. In order to use Earthdata Search, you must upgrade your web browser. Alternatively, you can Earthdata Access.. To upgrade your browser. ASTER Type of Sensor. Field Definition: Sensor Type available; Global DEM (GDEM). Units. Field Definition: The units of measurement. Values: Degrees Vendor. Field Definition: The name of Vendor providing data. Values: NASA/METI Version Number. Field Definition: The Version number of data. Values: 1.1 2.

Gisat / ASTER GDEM

The ASTER GDEM covers land surfaces between 83°N and 83°S and is comprised of 22,702 tiles. Tiles that contain at least 0.01% land area are included. The ASTER GDEM is distributed as Geographic Tagged Image File Format (GeoTIFF) files with geographic coordinates (latitude, longitude) ASTER GDEM - Global Elevation Data The science teams at the NASA Jet Propulsion Lab (JPL) and Japan's Ministry of Economy, Trade, and Industry (METI) used the ASTER sensor onboard the Terra satellite to produce 30 m resolution elevation data. These data cover 99% of the land surface from 83° north latitude to 83° south latitude The second version of the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model (ASTER GDEM) is the state-of-the-art global elevation data-set developed by stereo images. However, the resolution of ASTER stereo images (15 m) is much coarser than areal stereo images, and the ASTER GDEM is compiled products. As part of this project emerged the ASTER Global Digital Elevation Model (GDEM). ASTER GDEM boasted a global resolution of 90 meters with a resolution of 30 meters in the United States. Despite its high-resolution and greater coverage (80% of the Earth), dissatisfied users expressed issues with its artifacts often in cloudy areas. ASTER GDEM used stereoscopic pairs and digital image correlation methods

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This perspective image of a complex volcanic landscape in the Andean mountain range was assembled from data acquired by ASTER on April 9, 2003. ASTER produces images using infrared, red, and green wavelengths of light. Vegetated areas range in color from red to pink, snow is white, water is black, and bare rock is earth-toned ASTER (Dec 18, 1999 - Current) JERS-1(OPS) JERS-1(SAR) (Feb 11, 1992 - Oct 12, 1998) Observation Period. From To (UTC) Search Area degree Decimal Sexagesimal N : : W : : E : :.

ASTER image of San Diego, CA. NASA's Land Processes Distributed Active Archive Center (LP DAAC) is located at the U.S. Department of the Interior, U.S. Geological Survey (USGS) Earth Resources Observation and Science Center in Sioux Falls, SD.LP DAAC was established in 1990 to process NASA land processes data products and provide vital contributions to inter-disciplinary studies of the. 2.3 million scenes from the ASTER archive were processed to create the latest version of the ASTER Global Digital Elevation Model (GDEM).Developed from ASTER scenes dating from March 1, 2000 to November 30, 2013, the geographic coverage extends from 83° North to 83° South ASTER GDEM V2 for the AOI The SRTM 3 DEM. SRTM or the Shuttle Radar Topography Mission was started 1999 onboard the Endeavour and collected data for 11 days. As the orbit of the shuttle was not circumpolar but sinusoidal it was only possible to cover a small portion of the earth surface ASTER DEM. The ASTER GDEM was created with two NIR cameras on the ASTER satellite. One looks down at nadir, and the other is inclined in the along track direction. After a short delay, the two image provide overlapping stereo imagery that allows creation of a photogrammetric DEM. The original DEMs are no longer freely available

ASTER is a high-spatial resolution imaging spectroradiometer flown on board Terra, the flagship satellite of NASA's Earth Observing System (EOS). The visible and near-infrared (VNIR) sensor provides four bands at 15-m resolution, the shortwave infrared (SWIR) sensor provides six bands at 30-m resolution, and the thermal infrared (TIR) sensor provides five bands at 90-m resolution You can find information about the ASTER GDEM data in the DEM FAQ on this site. An ASTER scene covers an area of approximately 60 km by 60 km and data is acquired simultaneously at three resolutions. VNIR - 15m spatial resolution - 3 bands at Green, Red, and Near InfraRed wavelength

The GDEM was created by processing and stereo-correlating the 1.3 million-scene ASTER archive of optical images, covering Earth's land surface between 83 degrees North and 83 degrees South latitudes. The GDEM is produced with 30-meter (98-feet) postings, and is formatted as 23,000 one-by-one- degree tiles ASTER Global Digital Elevation Map (GDEM) GDEM is 30m elevation dataset created by stereo-correlating the 1.3 million scene ASTER VNIR archive, covering the Earth's land surface between 83N and 83S latitudes, formatted in 1 x 1 degree tiles as GeoTIFF files. It is available from. NASA's GDEM WIST site. However, the process is cumbersome. ASTER GED is available in 1x1 degree tiles at ~100m and ~1km spatial resolution and products include emissivity (5 ASTER TIR bands), surface temperature, NDVI, land-water map, geolocation information, observation count, and the resampled ASTER-GDEM. The image below shows the ASTER GED emissivity product resampled to 5km for ASTER band 12 (9.1. GDEM and SRTM using a precision of integer meters leads to the poor correlation (r=0.55) between the SRTM and GDEM. Figure 8. Correlation of the ASTER GDEM to the NextMap DTM and SRTM-3 Figure 9. France-6 DEM. Despite a correlation coefficient (r> 0.96) with both the SRTM and NextMap DTM, numerous prominent artefacts occur in the GDEM

The main difference between SRTM and ASTER GDEM is the mesh size since SRTM is generally available with a 90 m mesh, but the mesh size is not the resolution. Note that both DTMs have a bias due to. Vital Signs of the Planet: Global Climate Change and Global Warming. Current news and data streams about global warming and climate change from NASA ArcGIS Loadin

ASTER Global Digital Elevation Model V003 Metadata Updated: July 17, 2020. Access & Use Information. Public: This dataset is intended for public access and use. License: No license information was provided. If this work. The ASTER GDEM data products are created by the Sensor Information Laboratory Corporation (SILC) in Tokyo. The ASTER GDEM Version 3 data product was created from the automated processing of the entire ASTER Level 1A archive of scenes acquired between March 1, 2000, and November 30, 2013 The ASTER GDEM data is a very interesting and useful addition to the existing SRTM data set. It can be well used to fill the voids in the SRTM data. Due to the artefacts and errors in the data however it is not well suited to be used directly in visualizations in most parts of the earth surface

Cílem práce bylo srovnání volně stažitelných digitálních výškových modelů Aster GDEM a SRTM pro účely srážko-odtokového modelování. V úvodní části je postupně popsáno srážko-odtokové modelování, zkoumané digitální výškové modely Aster GDEM a SRTM, používaný software a charakterizováno zkoumané území The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) was released to the public in July 2009. The GDEM version 2, currently under development, is reproduced using an updated algorithm and contains new ASTER data observed after September 2008 The Advanced Spaceborne Thermal Emission and Reflection Radiometer ( ASTER) global DEM dataset is a joint effort between the Ministry of Economy, Trade, and Industry (METI) of Japan and the National Aeronautics and Space Administration (NASA) of the US. ASTER GDEM is a 1 arc-second resolution, corresponding to a resolution of about 30m at the. The ASTER GDEM covers land surfaces between 83' N and 83' S and is comprised of 22,600 1'-by-1' tiles. Tiles that contain at least 0.01% land area are included. The ASTER GDEM is in GeoTIFF format with geographic lat/long coordinates and a 1 arcsecond (approximately 30m) grid. It is referenced to the WGS84/EGM96 geoid ASTER GDEM 2.0 is a 1 arc-second elevation grid with a scene size of 1°× 1°(30-m spatial resolution at the equator) georeferenced to the World Geodetic System 1984 (WGS84)

Leyte | PhilGIS

Comparisons of ASTER GDEM and SRTM each with DEM5 in the flood plain area show root‐mean‐square errors between the former two as ± 15·4 m and between the latter two as ± 13·5 m. Although SRTM overestimates and ASTER GDEM underestimates valley floor elevations, both DEMs can be used to extract the elevations of required geometric data, i. ASTER GDEM has 3x better resolution from SRTM, however deep analysis shows that it's elevation precision is not as good as one could expect. I've contacted with one university scientist - expert for terrain elevation models and he is convinced that apart from very fine resolution, one should relay rather on SRTM3 v

The ASTER GDEM version 1 was released in July 2009 and the version 2, now under processing, will be released in the October 2011. The GDEM version 2 is reproduced using the updated algorithm. Validation study of the GDEM version 2 confirmed that elevation offset and horizontal resolution will be greatly improved in GDEM version 2 and the.

ASTER GDEM. The 2009 and 2011 releases of a global ASTER GDEM dataset, with 1 postings, may also have been noticed. I welcome and make use of this new free data source, but I invite readers to read my initial review of these data before getting too excited. Perhaps I am biased, but I still believe that for many areas, the best available data. The higher resolution ASTER sensors made the creation of a 1 arcsecond resolution global digital elevation model (GDEM) possible. This is significantly better than the 3 arcsecond resolution offered by SRTM3 (previously the highest global terrain model available.) Since last Monday, METI and NASA made available a Digital Terrain Model with 30×30 resolution (ASTER GDEM). This means that since this day, thanks to them, to gvSIG and Sextante, we can perform analysis of the physical environment of the whole world with first-class data

DEM - Global elevation data - OpenMapTile

The recent publication of the ASTER GDEM (30m) is a great step towards a worldwide high resolution elevation model. I have done some test in the Southern Alps around Trento which is among the most complex terrains in Europe. The scope was to calculate a difference map to the local high resolution DEM 1. Enter Search Criteria. To narrow your search area: type in an address or place name, enter coordinates or click the map to define your search area (for advanced map tools, view the help documentation), and/or choose a date range ASTER GDEM ASTER GDEM is an easy-to-use, highly accurate DEM covering all the land on earth, and available to all users regardless of size or location of their target areas. Anyone can easily use the ASTER GDEM to display a bird's-eye-view map or run a flight simulation, and this should realize visually sophisticated maps There are a number of DEM products available for global Earth observation and analysis. The Advanced Spaceborne Thermal Emission and Reflectance Radiometer Global Digital Elevation Model (ASTER GDEM) is a product generated from optical data collected by the ASTER instrument onboard NASA's Terra satellite (Hengl and Reuter, 2011) ASTER GDEM Version 2. ai3d Global Mapper User Posts: 25 Trusted User. May 2012 edited April 2015 in GIS Data Sources. Is this dataset available yet as a built in to GlobalMapper. I couldnt find it. If it is not, can we get it included as I believe its a 10m resolution DEM for the globe

Lp Daac - Astgt

  1. View Academics in Aster Gdem on Academia.edu
  2. To demonstrate how DEMto3D plugin works, I used a sample of ASTER GDEM, as you can see below: You can set the extent of the STL model to be exactly same as the extent of the DEM automatically, or you can choose a subset of the DEM, so I will leave this to you
  3. This study assessed the performance of recently released 3 arc second SRTM DEM version 4.1 by CSI-CGIAR and 1 arc second ASTER GDEM version 1 and version 2 by METI-NASA in comparison with ground control points from 1:50000 digital line graphs for the coastal zone of Shandong Province, Easter China
  4. Digital elevation models derived from satellite sensors, as SRTM(Space Shuttle Radar Topography Mission) and ASTER (Advance Space borne Thermal Emission and Reflection Radiometer) are freely available on the internet and over the last few years hav

Video: How to Download ASTER DEM 30m Data for FREE - YouTub

The new global digital elevation model, ASTER GDEM, was produced by the Ministry of Economy, Trade and Industry (METI) of Japan and the United States National Aeronautics and Space Administration (NASA) from optical stereo data acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite instrument ASTER data and products distributed by the LP DAAC, with the exception of the ASTER Global Digital Elevation Model (GDEM) dataset (ASTGTM) version 2 (v2), have no restrictions on data use, sale, or subsequent redistribution. For more information visit the ASTER Policies site. Citation

ASTER Global Digital Elevation Model V00

On June 29, 2009, NASA and the Ministry of Economy, Trade and Industry (METI) of Japan released a Global Digital Elevation Model (GDEM) to users worldwide at no charge as a contribution to the Global Earth Observing System of Systems (GEOSS). This version 1 ASTER GDEM (GDEM1) was compiled from over 1.2 million scenebased DEMs covering land surfaces between 83°N and 83°S latitudes This study aims to compare the accuracies of ASTER DEM, ASTER GDEM, and SRTM DEM for the area of Universiti Teknologi Malaysia (UTM) and surrounding. In doing so, a number of Ground Control Points (GCPs) were collected using GPS technology and used to generate an absolute DEM using the ASTER stereo imagery. Moreover, two well-known DEMs including ASTER GDEM and SRTM DEM were obtained for the. For ASTER GDEM, in each unzipped folder there will be two DEM files: select the one that ends in _dem. It should show up in the correct location in Global Mapper. Right click on the DEM (its name will start with ASTGTM) in the Control Center and select ZOOM TO from the menu. Then uncheck the box beside the DEM and the DEM should disappear The ASTER GDEM appears blurry in comparison to other 30-meter DEMs (NED30 and the 30-meter SRTM data for the United States). The spatial detail that is resolvable by the ASTER GDEM is estimated to be between 100 and 120 meters. The ASTER GDEM also contains residual artifacts and anomalies that affect the overall accuracy and use of the data. Som

Series Name: ASTER Global Digital Elevation Model - GDEM: Publisher: National Aeronautics and Space Administration: Type: Elevation Database: Sub-Type: Scale/Resolutio EU-DEM is a digital surface model (DSM) of EEA member and cooperating countries representing the first surface as illuminated by the sensors. It is a hybrid product based on SRTM and ASTER GDEM data fused by a weighted averaging approach Abstract: Recently, a new Global Digital Elevation Model (GDEM) from optical stereo data acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) was released with the resolution of 1 arc sec. In this study, the performance of the new ASTER GDEM is assessed by comparing with SRTM (the Shuttle Radar Topography Mission) and point data from ICESat/GLAS (Ice, Cloud.

Advanced Spaceborne Thermal Emission and Reflection

LP DAAC - NASA and METI Release ASTER Global DEM Version

The ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) Global Digital Elevation Model (GDEM), which was released in June 2009, provides elevation data for over 99 percent of Earth's land area The initial version of the ASTER Global Digital Elevation Model (GDEM v1) (Abrams et al., 2010), a joint project of the U.S. National Aeronautics and Space Administration (NASA) and the Ministry of Economy, Trade, and Industry (METI) of Japan, was released in June 2009. The user community widel

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