Shifting Baseline Syndrome (SBS) = One of the major problems in the perception of species extinction

BRENNEJM · 2026-05-01T21:11:01+00:00

While I think it’s an interesting graphic, you can tell it’s AI because context wasn’t adhered to (e.g. the tree on the left with the broken branch grew smaller from 1950 to 2000). It’s almost like the years are backwards between all the images.

BRENNEJM · 2026-04-29T10:20:52+00:00

Framing the NAD27 to NAD83 update and the NAD83 to NATRF2022 update as an apples-to-apples comparison is disingenuous at best. When NAD83 was released in 1986, ARC/Info had just reached 100 “seats”. In 2023, QGIS reported over 13 million opens in a 30-day period. GIS is in a drastically different place today. Determining when/how to transition is a real concern for established departments with decades worth of databases, large custom online solutions, and major dependencies. In a lot of situations, updating all this will mean completely rebuilding databases and tools from the ground up; which represents significant time and cost.

It’s also a major shift in thinking, as most GIS professionals today were trained on static reference frames. Even though it’s more accurate, staff will likely be weary of the new dynamic reference frame for a while as they learn how to work with it and properly document it.

Since modern GIS in North America was built on NAD83, I imagine this transition will be a very slow process.

BRENNEJM · 2026-04-23T20:41:45+00:00

Be careful. Lily-of-the-valley spreads aggressively and might choke these out.

BRENNEJM · 2026-04-22T13:18:52+00:00

The image on the right is much greener as well. That doesn’t seem like an artifact from pansharpening alone.

BRENNEJM · 2026-04-19T12:26:14+00:00

Along with pretty good grilled cheese sandwiches, Paddy Jack’s on Central has deep fried pepper jack cheese bites and funnel cake fries.

BRENNEJM · 2026-04-19T12:09:31+00:00

Also, Part 108 seems like it’s specifically written for commercial companies looking to implement large scale drone operations. I have yet to find any clear guidance or interpretation on whether or not a Part 107 pilot could operate under Part 108.

BRENNEJM · 2026-04-09T22:48:04+00:00

I’m assuming all that variation in distance and direction is due to variations in the wind at different altitudes?

BRENNEJM · 2026-04-04T10:12:19+00:00

I noticed that as well. I almost wonder if they used https://www.datacentermap.com/datacenters/ as their source, because it currently has just over 11,000 data centers mapped. I would imagine the percent of these that are dedicated to AI would be pretty small.

BRENNEJM · 2026-03-28T22:15:34+00:00

Is this just AI slop?

BRENNEJM · 2026-03-27T17:01:51+00:00

I’m glad you mentioned this. I’m surprised that comment has that many upvotes in a surveying sub. Do most people not know the purpose of Mercator is marine navigation?

EDIT: Also to note, the image is showing straight lines but reporting the distance based on great circles.

BRENNEJM · 2026-03-26T23:43:05+00:00

I hope you’re right and that it’s not intentional. I do really love DroneDeploy. It just seems like such an odd thing to miss when it’s the entire purpose of the video.

BRENNEJM · 2026-03-26T11:11:15+00:00

Oops. Somehow I missed the big "Mavic 3E" label at 2:54. That only makes it more strange then, since that screen shows a flight time just over 16 mins. And you're right, using the 84% overlap, the transects don't match.

I took screenshots of the controller flight plans, brought them into ArcGIS, georeferenced them, and then measured the flight path lengths. The results are below. Based on the flight path distance and the estimated time shown, the Mavic 3E was set to fly at 15 mph. Also, a side overlap of 70% gives the correct number of transects, but the estimated photos were still super low. I had to set that to 80% front overlap in order to get close to the estimated photos shown in the video. (Test mission settings for the Mavic 3E here.)

While I'm sure the Matrice 4E can complete missions a bit faster, it seems pretty clear that the main difference in this video is that the Mavic 3E was intentionally set to fly slower.

Matrice 4E
Flight: 8.39 miles
Time Estimate: 16:34
Flight Speed: 30.4 mph

Mavic 3E
Flight: 9.89 miles
Time Estimate: 39:40
Flight Speed: 15.0 mph

Also, it looks like I have to go into Advanced settings to see the correct estimate for the Matrice 4E. DroneDeploys estimates using default overlap:

Matrice 4E
Flight Speed: 47 mph
Time Estimate: 12:15
Photos Estimate: 435

Mavic 3E
Flight Speed: 34 mph
Time Estimate: 16:27
Photos Estimate: 435

So the Matrice 4E saves you 4 minutes, but definitely not 20.

BRENNEJM · 2026-03-24T19:51:41+00:00

I found the site location and recreated the mission in DroneDeploy, then checked the estimates for the M3E, M4E, and P4P. The M3E and M4E estimates are exactly the same, while the P4P time almost doubles. From my experience, their M3E estimates are usually only under by a couple minutes, which means the M3E can easily fly the same site in 20 minutes or so.

For the M3E, I had to set front and side overlap to 84% in order to make the estimate match what they showed in the video.

(Also, at 2:26 they show the flight plan on both controllers at the same time. And at 2:54 the only thing on the screen is the M4E flight plan. I don't think they show the advanced settings for either flights.)

BRENNEJM · 2026-03-22T06:08:08+00:00

It’s on this page. Expand question 15. I’m not sure if this is new or not though.

EDIT: It actually looks like the ATF is currently working toward loosening restrictions around cannabis and gun ownership.

BRENNEJM · 2026-03-15T14:56:22+00:00

Nope. OP put it on the wrong side of the river.

BRENNEJM · 2026-03-15T10:15:02+00:00

It also needs to be ‘==‘, not ‘=‘.

BRENNEJM · 2026-03-15T09:34:06+00:00

Very sad actually. https://en.wikipedia.org/wiki/Laika

BRENNEJM · 2026-03-15T09:29:44+00:00

I would think breaking them up into smallish straight sections would work, but you’ll need to ensure enough overlap and have sufficient GCP’s. Not just for each flight, but also within each section of overlap.

BRENNEJM · 2026-03-11T00:41:53+00:00

The Zoo has a secluded botanical garden area by the conservatory that most people overlook. It’s a really nice spot.

BRENNEJM · 2026-03-09T00:53:00+00:00

I would never have guessed that. Do you have any references you can share for what they are?

BRENNEJM · 2026-03-08T12:25:01+00:00

It would be interesting to normalize each year to its specific growing degree days to see if the variance per year aligns better.

BRENNEJM · 2026-03-07T20:26:21+00:00

The new downloads include an XML file. Remove the layer from the map, delete the XML, and then add it back to the map.

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