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Thoughts about Mapbox 2.0 becoming Proprietary
By MarcusP,
I am an avid user of the Mapbox JS library, and I use to map points of interest in some of our projects, like locations of survey targets for monitoring purposes.
https://www.mapbox.com/mapbox-gljs
THe latest branch now includes improved support for 3D terrain, but I am still nt seeing support for negative elevations- i.e underground.
But with the news that Mapbox 2.0 is no longer open source, What are your thoughts about it?
Certainly it has an imapct on the projects th
US government adds DJI to Commerce blacklist over ties to Chinese government
By Lurker,
DJI — one of the largest and most popular drone companies in the world — has been added to the US Department of Commerce’s Entity List, designating the Chinese company as a national security concern and banning US-based companies from exporting technology to the company.
DroneDJ first reported the news, which was confirmed by Reuters based on a conference call with a senior commerce official. The Department of Commerce referred questions to the Federal Register listing. DJI declined to comm
DJI releases new Mavic 2 Enterprise Advanced
By Lurker,
There’s a new member of DJI’s Enterprise line of drones. It’s the Mavic 2 Enterprise Advanced, and it features a new 32X camera, a DJI-produced thermal sensor, and a Real-Time Kinematic module for centimeter-level accuracy.
The new model comes a little more than two years after DJI released its Mavic 2 Enterprise, which proved a very popular drone with First Responders – ranging from lifeguards to law enforcement to Search and Rescue teams. It was that drone which heralded the modular desig
Mapping Sea-Level Rise with Sentinel-6
By Lurker,
On November 21st, Sentinel-6 was launched by the European Space Agency (ESA) using a SpaceX Falcon 9 rocket. The satellite was developed in partnership with NASA and other agencies and was named after former NASA Earth Science Division Director Michael Freilich.[1]
The recent launch of Sentinel-6 Michael Freilich/Jason CS is the latest mission that will collect sea level measurements at more frequent intervals to monitor the effects of climate change on our oceans. With one of the biggest
#Ask : FLO2D on QGIS plugin for urban flood
By rredy,
I'm currently learn to build urban flood model using FLO2D plugin on QGIS. It's running well when using sampel data. But when I try to build model with my own data it doesn't work. I'm stuck on detailed graphic process for flood. I even tried to make a model by slightly changing the boundary from sampel data to looking for the error, but it's not work again like before. I learn from this tutorial. For additional information, I posting screenshot when doing the process
1. Samp
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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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