I cannot register an account on USGS. I want to view 20th-century Landsat imagery, but I can't do it due to the mandatory registration. I am essentially working on forest cover changes related to severe weather, and I really need access to the source files, as I am also planning to collaborate with the ESWD, but all my plans have fallen apart because I just can't register!
Using ArcPro 3.4 (this is a limitation imposed by a custom toolbox I have to use for validating data)
The data I'm dealing with is boundary data used in NextGen 911 situations.
Boundary layer A is a boundary layer controlled by the state, and editing it is not an option. It is maintained in WGS84.
Boundary layer B is a layer from a client that must align, vertex by vertex, with boundary Layer A. Boundary layer B is maintained in UTM15N.
My job is to make layer B align with layer A. The differences between the two boundary layers are slight but noticable.
If I load the state's layer A into my map, it will be displayed in my map's coordinate system, which is currently the same as layer B, UTM15N. Is this okay, or would it be better to change my map coordinate system to WGS84 first? Does it matter what the map coordinate system is set to?
OR...should I bring/project the client's layer B into WGS84 and do the alignment that way, knowing I'd have to bring that layer back to UTM when it's all said and done?
In case it's not obvious, I am looking for a process where I only have to do this one time. I'm worried that projecting the data back and forth will introduce some "projection drift", if you know what I mean. If I submit layer B to the state and it's not 100% aligned with layer A, it will get rejected, and I am going to have to submit data quarterly.
Hello everyone! I am very new to ArcGIS as I am taking my first class on it. I am having issues resizing my map on the layout. The map frame does not match up with the map size, and I can’t fit the map to the borders of the layout. Any tips? Thank you so much.
Hey everyone,
To start, i dont really use ArcGIS. But im building out an api for salesforce to grab values and data from it to display on the SF side.
Is there a way to find and export all of the exisiting fields and aliases in my ArcGIS so that i can map them correctly for Salesforce to grab?
Long time lurker, first post — figured this was finally the right occasion.
Been in GIS a long time. Started on a UNIX box with ARC/INFO. Now I'm explaining to software why my schema isn't normalized instead of the other way around. Somewhere in between I started making shirts to cope.
A few of them:
Wearing a different one each day at the UC if anyone wants to say hi or tell me which one is the worst.
Mostly just wanted to share with people who'd actually get the jokes instead of my non-GIS friends (and Mom) giving me a polite confused smile. Happy to share where to find the rest if anyone's curious.
I’m trying to figure out a way to use arc to find possible routes on steep terrain. I want to find a route from A to B that stays below a certain slope threshold, in the shortest distance. Any ideas on the best way to achieve this?
How do I number these points sequentially? As in have the map label them 1, 2, 3? I can't figure it out.
I am new to this software, sorry in advance!! I have been having trouble joining a table and a feature class’s data together for a project; the data in the US_County_Fertility_2019_Census (table) and US_Counties_2019_Census (feature class). The "US_County_Fertility_2019_Census" has all the data that it should have, but the "US_Counties_2019_Census" all have <Null> in them. Only the columns have been joined, but not the data itself. I provided the fields for both of them if that helps.
Hi all,
I hold registered mining rights to a greenstone belt property of just over 300 hectares in the Zvishavane area of Zimbabwe (Midlands province, part of the Mberengwa Greenstone Belt). I’ve done what ground exploration I can — walking the claim, identifying outcrop, taking photos and rock samples — but I have zero budget for trenching, IP/magnetic geophysics, or commercial remote sensing services.
What I’m hoping to learn from this community:
1. Can red/iron oxide zones (gossans) actually be picked out reliably from free or low-cost satellite imagery (Sentinel-2, Landsat, etc.)? If so, which band combinations or indices would you suggest for someone just starting out?
2. Is there any way to get a rough read on alteration zones or possible gold-bearing structures from satellite data alone, without ground-truthed spectral libraries?
3. Are there any free or open tools/platforms you’d recommend for a complete beginner trying to do this on a shoestring?
I’m not expecting satellite imagery to “find gold” — I understand its limits — but if it can help me prioritize where to focus my limited ground sampling, that would be huge.
For reference, here are my registered claim boundary coordinates (UTM, Zone 36S):
Claim E:
• A: 813082.17 E, 7769641.64 N
• B: 814137.58 E, 7768185.70 N
• C: 813510.24 E, 7767513.95 N
• D: 812581.76 E, 7768995.22 N
Claim F:
• A: 812581.00 E, 7768994.91 N
• B: 812569.91 E, 7768500.57 N
• C: 812611.31 E, 7767981.32 N
• D: 812800.13 E, 7767980.13 N
• E: 812779.76 E, 7768501.56 N
• F: 812697.72 E, 7768626.03 N
• G: 813509.91 E, 7767612.63 N
• H: 812750.86 E, 7766617.60
• I: 811911.11 E, 7768243.47 N
Happy to share imagery too if anyone’s willing to take a look.
Appreciate any guidance, even pointing me toward beginner resources.
I need to export specifically Polk county owned parcels and the query works so the parcels switch from statewide to just the specific ones owned by the county govt when I type in ‘ OWN_NAME contains the text POLK ‘ (you can see the SQL text above).
The attribute table has the 10 million+ entries of all of the Florida statewide parcels but as soon as I apply the query they disappear. I tried doing the query in ArcGIS online (which they call filters or something) and reimported it to pro and the attribute table is also empty. It says 0 of -1 selected. I need the specific parcels to be in the attribute table when I share the shape file to somebody else.
I tried using the feature class to Geodatabase tool to export the files, but only two of the several files needed to re-import the shape file appear on my computer when I try to export it. I tried sorting the attribute table, alphabetically and searching for the owner name that way, but my computer always crashes because there are 10 million parcels / rows.
I also tried to use the cursor select on the map, but only some of the parcels in the county would appear at a time, and I could not get them all in one group at once.
Anyone have advice?
Logged on today and my Aerial image just stopped appearing today.
I updated ArcGIS Pro and I restarted my computer several times. I don’t use the ESRI base map because I use this aerial for all my projects.
I haven’t made any setting changes over night so
I’m not sure why it stopped working.
Any advice would be greatly appreciated
I’m working on a printed travel guide book and using maps exported from ArcGIS Online (topographic and open street), I heavily edit them afterwards in Illustrator (remove layers, change colours, simplify, redesign, etc.).
The maps are only illustrations inside the book, I’m not selling the maps themselves.
I understand that attribution is required, but I’m unclear on whether attribution is enough or if this kind of use also requires explicit permission/licensing from Esri.
Would this generally be allowed in a commercial publication if attribution is included?
Thanks!
Did the June update happen last night? I haven’t seen any blog posts or announcements yet.
Somehow I lost the ability to calculate the PIN/ parcel number field, so now the guts for the parcels won’t populate. How do I get it to calculate again? I tried joining to another shapefile with the parcel numbers but it wouldn’t work.
I have a map with about 45 layers of data, which gets output as 15 maps by combining layers in groups of 3. I have a Layout with the groups of layers in sub folders so I just have to click one group off and the next group on. So far so good. When it comes to output, I export to PDF, but I have to do that 15 times. When somebody wants me to change a font or a symbol, I have to export it, 15 times.
Is there a better way to do this?
Looking to understand GIS technology better. What are the best and worst aspects of ESRIs ArcGIS Pro? What are the most difficult things of converting Cad to gis? Go….