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Why your mental map of the world is (probably) wrong
By iron1maiden,
These are some of the most common geographic misconceptions that are both surprising and surprisingly hard to correct.
https://www.nationalgeographic.com/culture/2018/11/all-over-the-map-mental-mapping-misconceptions/
ENVI to Arcmap
By Ghazal,
Hi all,
This is my first time using ENVI and I have applied atmospheric corrections. These are the steps I took:
1- Radiometric correction
2- FLAASH atmospheric correction
3- To eliminate the Negative values and make them between 0 and 1 in data values, I used this formula: (B1 le 0)*0+(B1 ge 10000)*1+(B1 gt 0 and B1 lt 10000)*float (b1)/10000
When I export the corrected later to TIFF, it will be in a 3 band composite but I need single bands to be exported as TIFF so I
GlobalMapper 21.1 WFS GML problem
By Capricorn,
Hi people,
When I connect to a WFS from GlobalMapper 21.1, a GML file with swapped coordinates is downloaded (northing-easting) and GlobalMapper reads these coordinates as they are easting-northing. Is there any workaround for this?
ArcMap reads this WFS normally using Interoperability Extension without telling SRS axis order. GlobalMapper doesn't have any option to chose SRS axis order.
1960s CIA drone-bird project a predecessor to NASA Global Hawk
By Lurker,
A recently unclassified CIA drone program provides us with perspective on UAS development. Also, U.S. high-altitude surveillance capabilities are being tested, another record has been achieved, and an award for the U.S. Air Force space plane.
1960s CIA Bird-Drone
Back when the U.S. was flying U2 spy planes over the Soviet Union and Gary Powers was on Russian TV after being shot down, the CIA got to thinking of another approach for gathering airborne intelligence.
Project Aquiline
U-blox technology platforms support BeiDou-3
By Lurker,
Current u-blox GNSS platforms — from u-blox M8 and beyond — support the recently completed BeiDou navigation satellite system modernizations, improving the availability of GNSS positioning services.
The opening ceremony of the BeiDou-3 global navigation satellite system (GNSS) was held in Beijing on July 31, officially celebrating the expansion of coverage offered by the critical Chinese space infrastructure to a global user base.
As a global supplier of GNSS positioning and wireless c
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By riza.pasha · Posted
what that tools, using 9.3.1 is like using windows 2000 interface, even more not like XP experience nor Windows 7 -
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I will still remain with the desktop for a long time. I stay until I extract the last drop. I still have version 9.3.1 running to be able to use some tools that don't work in version 10xxx -
The projection is realy with with AXIS["Y",EAST] and AXIS["X",NORTH]] and WFS reads it well while making GML, meaning Global Mapper reads only "regular" SRS axis order?
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Hi all, This is my first time using ENVI and I have applied atmospheric corrections. These are the steps I took: 1- Radiometric correction 2- FLAASH atmospheric correction 3- To eliminate the Negative values and make them between 0 and 1 in data values, I used this formula: (B1 le 0)*0+(B1 ge 10000)*1+(B1 gt 0 and B1 lt 10000)*float (b1)/10000 When I export the corrected later to TIFF, it will be in a 3 band composite but I need single bands to be exported as TIFF so I can use in Arcmap. So what I need is to use some bands of each image in Arcmap to make a composite eventually but I dont know how to export single bands when they are atmospherically corrected. I would appreciate any help on this! Could you please tell me in steps since Im very new to ENVI and know almost nothing about it!
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