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whocares1980

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Everything posted by whocares1980

  1. Here is my suggestion ( I am not including pre-processing or post processing methods of images, I assume you know this) 1- You set a time interval to study the NDVI based on the availability of data and your study area (the change of NDVI in desert cities is different than that in other cities). 2- Of course you gonna use Landsat, so for the missing date, you gonna use SPOT images with better spatial resolution. 3- You usually do not enhance the spatial resolution of Landsat images because these images are the majority and the errors produced of each fusion will be huge for all images. what you do is to decrease the SPOT images spatial resolution to 30m, if that makes sense?. I even do not recommend fusing the images for NDVI analysis because their radiometric values will not be retained and you gonna lose a lot of information as Lurker said. 4- Do the statistical analysis.
  2. The TIR calibration algorithm for landsat8 TIRS was changed to fix the problem...It will be effective from Jan, 2017. However, the hardware issue still exists.
  3. The most important thing is the connections, esp. in Canada.
  4. tried it with envi...haven't been using ERDAS since ERDAS 8.7
  5. Hi, I am going to register for python in feb and pay the money to get the certificate... Although I am very busy writing my thesis but without programming, jobs are hard to find.. See you there student
  6. Thanks shin... I have Navteq data for my study area as polyline and up to date... I need to find the total area of roads, hence I need the polygon. Were you referring the polyline result for only QGIS or for all the methods you mentioned above? Thanks
  7. Hi there friends, Do you know a way that I could extract streets as polygons (not center lines)? I tried universal Maps downloader but as you know I got the streets as images not polygons as I want to find the width of the streets!! Thanks Wk
  8. good people never last for long.... Good luck with your new post altho I do not recommend anyone to go working in war zones.
  9. why using MODIS for such small area? MODIS is mostly used for regional and continental scales... Use Landsat...
  10. dark. has just uploaded a great ebook which discusses the projections in details.. I recommend you read it.
  11. Honestly, sometimes when I ask for a link update in here, the guys in here are very quick to re-upload. Thanks guys
  12. As was mentioned above, I think it is same as Arcmap but it is built for 64bit systems. They want to test it using few geoprocessing tools and then maybe gonna transfer all geoprocessing tools to 64bit.
  13. Depends. Working in governmental or international company is totally different. or working in the office, field or as a teacher is also different. Prob, they gonna ask you about your CV. good luck
  14. Hi All, I have building footprints with height info. I also have sun elevation (angle) and sun azimuth. How can I model the shades for buildings and extract them??? There is a model in ArcGIS but it is for DEM data. Thanks WhoC
  15. Hi, You all have forgotten another method based on LULC classification where each land use type is given a specific emissivity>>> NDVI method does not work in all conditions.
  16. Dear Admins and owners, This site is growing very fast and we are all happy for this. However, please consider changing the background colour, it is extremely difficult to read with this background. The reflection of this website makes it really hard to read. I hope you take my suggestion seriously. Kind regards, WhoCares :shocked:
  17. I first had firmware is 3.2.5.0.1 (before the latest) i tried to install terrasync 3.2 on it..but mesg says (GPS is not supported) weird... aren't there terrasync 5.2? so i can try? I tried many many ways but didn't work Thanks for your reply... I tried the pdf and other ways
  18. I cannot activate the GPS in Juno SB trimble (GPS firmware 3.2.5) and terrasync 3.2.1 The GPS com is right why? Thanks whocares
  19. Dear seniors, I am trying to use patch analyst in Arcgis 10 but i think it is not supported till now. Is there any software or extensions that can be used for patch analyst (landscape indices)? Thanks in Advance whocares
  20. http://www.colorado.edu/research/cires/banff/pubpapers/94/ you can use this reference. It is very useful. You can use SLEUTH, however it is usually used with land cover NOT land use.... Land use prediction is a very challenging task... because 10s of variables should be modeled in order to predict land use.
  21. When I do atmospheric correction for Landsat via FLAASH, it asks me about the wavelength and FWHM ASCII? how can I create ASCII using the header? if not how can I get the wavelength and FWHM ASCII for an image?? Thanks
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