achoknyz

The software will come in hardy Mostafa. Will appreciate

hey am still awaiting your response

I would love that too if don mind

Dear Adel.naseri, You much welcome. Do you mind sharing your methodology for UHI retrieval using Aster data. thank you Regards Achoknyz

Dear Cadet, As FLAASH module multiplies the output (surface reflectance data) by 10,000 omitting decimals for faster calculations and lower file size, we should apply this equation: (B1 le 0)*0+(B1 ge 10000)*1+(B1 gt 0 and B1 lt 10000)*float (b1)/10000 where; le means less than or equal ge means greater than or equal gt means greater than lt means less than The resulting surface reflectance data will lie between 0 to less than unity (0 to <1) suitable for further image spectrometry and comparable with most spectral libraries. I hope that helps Regards

How do you do it?

Am interested in conducting thermal mapping using remote sensing at a fairly high resolution. Any one with ideas on what data to use and how to do it Regards

Hello, I wish to convert TRMM daily dataset from HDF format to Ascii data format. Wish to request for script to do massive data conversion Regards

Check the discussion below. You need to look at other parameters affecting temperature not just a black body. I hope this helps. http://www.gisarea.com/topic/3547-calculation-of-emissivity-from-ndvi/?hl=calculating

http://www.mercatorcps.com/MercatorPublish

Want to map out all the aquatic vegetation and submerged vegetation. A clear guide would be so much helpful

Looking for a clear methodology on how to map aquatic vegetation using landsat data. Any info provided will be highly appreciated Regards

Hello Friends, Kindly how do you compute bare soil index from landsat data. Any help will be highly appreciated. Regards Achoknyz

Hi Sigologolo, Kindly send me by mail. [email protected]

Hi Sigologo, I would appreciate so much if you can send the document to me. The link provided is dead. Regards

Dear All, I wish to request anyone with a procedure on how to process Aster Level 1A to 1B to kindly provide me with the documentation/Tutorial. Regards

Kindly someone provide me with steps used while performing the following: Density slicing PCA Thank you and looking forward for your contributions

@sergeant, wish to derive emissivity to enable me calculate land surface temperature

Hello Guys, Kindly help me with a clear formula on how to calculate emissivity from NDVI. If possible step by step Regards

Kindly provide information on how to check for image anomaly and the process of carrying out image normalization for landsat data. Thank you

Dear All, Hi am interested in learning web mapping from scratch. Any idea on where to get tutorials from Looking at developing my own custom made web page. Kindly share

Dear All, Am trying to derive the land surface temperature of an area within the tropix in a bid to detect Urban Heat Island. Am proposing a time series to detect if at all it is existing. My biggest problem lies with deriving of the emissitivity where i have used formulars that have been advanced before but cant get values within the range, Anyone with a clear tutorial on how to derive LST using Envi or Erdas will be very helpful. Thank you in advance and Regards to all.