Digital data acquisition
Citing and Permission for use of ASTER data (and others from LP DAAC)
I just got a definitive email response on how to cite ASTER data (or other data from the same source), and that there are no restrictions on their use. I am publishing a paper in ESRI's ArcUser, whose the editor also got this email, so ESRI should now be aware (if they weren't before), that these data are acceptable for publication (you don't have to only use ESRI's data).
Thanks to Janice Wilson for clarifying this!
GIS data and imagery online
Visit the file download area using one of the following
Matching ASTER Granule ID with Filenames
This question/answer comes from the LPDAAC archives but the link is no longer online so I'm posting the formatted text here. Note that the naming conventions changed in 2003 (see below)
Peruvian Places in GoogleEarth
GoogleEarth Places for Peru
If you use GoogleEarth you will probably appreciate these placenames for 100,000+ “centros poblados” in Peru that you can link to directly and display in Google Earth.
How to convert ASTER EOS-HDF imagery to IMG in ERDAS Imagine 8.7
Imagery from the ASTER instrument on the Terra platform is described at the JPL website.
This description text was copied from p.24 of the following PDF file
http://edcdaac.usgs.gov/aster/ASTER_GeoRef_FINAL.pdf
ERDAS Imagine 8.5 (Leica Geosystems)
The ERDAS Imagine suite of image processing software also handles the importing and geo-referencing of ASTER data sets. With
Importing ASTER (14DMO) DEM and Imagery into ArcGIS 9
Steps to using ASTER14DMO DEM and Imagery data in ArcGIS 9.1 or 9.2
The ASTER14DMO format file contains 15 TIF files.
These include 14 bands of imagery (V1-3n and 3b, S4-S9, T10-T14), and a DEM file.
If you have an HDF file see this posting first.
DEM
1. Open the TIF file and right-click layer > Data… > Export Data… choose Format: GRID
2. Give it a legal filename for GRIDs (short filename, no spaces or weird characters)
Efficient Georeferencing in Arcmap
Arcmap Map Georeferencing techniques and keyboard shortcuts that save time.
Make pyramids before georeferencing. ArcCatalog (or toolbox) can batch Make Pyramids.
Choose the reference that you will use to georeference the map. For historic maps and older datums the coordinates that make up the margins of the map frame are often best. In the case of South American topo maps a UTM grid is available but I’ve found the edge Lat/Longs to be more versatile and quicker to reference.
Put the map frame in the destination coordinate system/datum (read from edge of paper map).
Aerial Photographs source archive
The following is an extensive list of providers of Aerial photographs (principally covering the USA).
This list was forwarded to Eric Schniter by friend Geoff Smick in environmental consulting, who is a co-worker of this guy:
Chris Zumwalt
GIS Technician
415-454-8868 x35
This is the list:
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MediaFire for sending large files via email
Allows you to send very large files to people via email. Rather than using attachments the recipient just gets a link that they click on. This service is better than YouSendIt.
http://www.mediafire.com/
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Mexico (INEGI) miscellaneous geographical materials
Orthophotos, tabular data, and other products from INEGI.
http://www.inegi.gob.mx/geo/default.asp?c=338- Login to post comments