Geographic Information System (GIS) or geospatial information studies or a geographic information system is designed to capture, store,... | Contact experts in Geoinformatics to get answers
2,074 views 359 posts
Questions related to Geoinformatics
In a normal year, the average monthly water flow (m3 /s) of river X and of spring Y are given in the attached table. Further Information: • Both river X and spring Y are located in the same...
13 August 2016 4,290 10 View
I have the position of a RADAR station and some aitrcrafts' azimuth, elevation and range data. How can I calculate the latitude longitude of those aircrafts?
08 August 2016 4,011 6 View
1) i have used K-means clustering followed by some morphological operator , but the extraction of building is achieved but there is a loss of information (visually). 2) i have used some edge...
08 August 2016 377 9 View
That is how can it can be filter, curve matching aspect.
08 August 2016 8,086 9 View
Hello dear friends. I want to know how can I find Building stones like Travertin and Marble according Remote Sensing and geochemistry anomaly or ....Actually in Iran we find Building Stones by...
07 August 2016 8,846 3 View
Hello, It will be really helpful, if someone can suggest some sources where DMSP-OLS data with thermal band is available.
05 August 2016 625 3 View
With decision trees its easy to overfit the data, especially in the case where there are lots of variables. However, if you want to grab a subset of variables that are more meaningful and explain...
02 August 2016 8,039 5 View
Hi, I have two variables, Temp (T) and Latitude (L). I have a DEM (E). I need to interpolate T from point shape file to each pixel of E. the relation is as follow: TE1,L1 = TE0,L0 - (E1-E0)*G -...
29 July 2016 4,704 4 View
I have run Random Forest and GBM in Biomod2 package in R, now I need to see their tree structure (final model or a sample tree). How can I do this? Does anybody have the necessary code (compatible...
28 July 2016 9,000 8 View
The story is I found that the watershed map simulated by model were not match with the actual watershed map, so I ask help from a professor. He suggested me only change to line up my modeling...
14 July 2016 3,311 3 View
Least square adjusment programme
07 July 2016 967 6 View
For example, if K2O wt% is 0.29 then how much is K%. Is there any standard calculation system/excel template for all the elements. I need for Ti% from TiO2, Fe% from Fe2O3, Na% from Na2O, Ca% from...
07 July 2016 885 3 View
07 July 2016 6,646 2 View
07 July 2016 5,176 8 View
07 July 2016 9,859 5 View
05 July 2016 709 5 View
I am getting a slope (5.6) for groundwater samples from deep aquifers(>30m depth) while that of shallow aquifers (
15 June 2016 7,196 4 View
I plan to perform an object-based land-cover classification for current vegetation types. The main goal is to create a vegetation map. I am considering to make an object based image segmentation...
06 June 2016 9,128 8 View
06 June 2016 4,005 5 View
A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ...
06 June 2016 2,639 2 View
01 June 2016 9,989 2 View
Landsat images have 30m spatial resolution as we all know. Which is why I have faced difficulty in differentiating different Land Covers such as: forest, vegetation, agricultural land as the...
05 May 2016 1,069 8 View
I think it has lots of limitations when we apply on nature, If someone know about it please explain it..
05 May 2016 758 0 View
We often use geo-spatial to define applications related to spatial or geographical cases. But what's the difference between spatial statistics and geo-statistics?
04 April 2016 8,042 1 View