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Need Help: Google Earth
By rahmansunbeam,
Hello everyone,
I need few advice about google earth.
1. how to download GE image with grids. i use gmapmaker but it doesn't show grid. GE plus blends the grid so small in large image they are hard to read.
2. is there any way i can save GE image with the elevation data, so that i can make 3d map in ArcGIS 9x.
Conversion:
By veegee,
Hi dear friends,
How can we change WGS 84/UTM projection to polyconic. Which software is more user friendly for this conversion since i have large data. Is it better to go with ERDAS or ArcGIS 9.3
Delights
predict path road using ARCGIS
By thief of hearts,
hi every one ,
i have 30m DEM and satellite images for area between two cities and i want to predict the optimum path road between the two cities (low cost& short cost) any body can help me in these
problem
best regards,
Focusing ALOS PALSAR Level 1.0 ERDASC with SarScape ENVI
By irafina,
Hello Guys,
I'm new here, perhaps anybody has managed to Focusing ALOS PALSAR Level 1.0 ERDASC with SarScape ENVI, i need help to solve which files should i select for the input file (orbit file, Data_1 file) ? See Picture.
Open source for WMS:
By veegee,
Which software is best and is suitable to replace Erdas Apollo for WMS ???
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Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways? -
Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways?
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