Questions tagged [usgs]
United States Geological Survey, government agency overseeing study and mapping of earth and life sciences.
117
questions
3
votes
1
answer
84
views
How to authenticate to download images from https://landsatlook.usgs.gov/stac-server
I am building a QGIS plugin in Python to fetch Landsat images from this STAC server:
https://landsatlook.usgs.gov/stac-server
I need to be able to download the thumbnails, but cannot find how to ...
- 294
0
votes
3
answers
73
views
Is there a way to view USGS 3DEP WMS(?) maps in Osmand, which uses TMS(?) format?
I'm very unclear on all of these acronyms. All I know is that USGS 3DEP LiDAR maps are very useful for seeing cliffs for climbing, and Osmand is very useful for offline navigation, but I can't figure ...
- 152
0
votes
1
answer
37
views
PDAL readers.ept fails to save LAS file
I am attempting to access the USGS 3DEP LiDAR Point Clouds - Registry of Open Data on AWS via the EPT PDAL reader in Python. I normally work with Python notation, so my code looks like this:
extent = ...
0
votes
0
answers
14
views
Computing normals option not working using CloudCompare GUI
I am trying to compute normals for a pointcloud I had cropped from a USGS lidar map. It is a .las file, but it might be missing some header values, but it does get imported into Cloud compare without ...
0
votes
1
answer
118
views
Downsample pointclouds from USGS (.LAZ) files in Python
I am trying to process pointclouds from USGS for a project and I am having a hard time working with the data (.LAZ files) because they are very large. They have around 36 million points. I tried ...
1
vote
0
answers
60
views
How to clip USGS LiDAR data and polygon files
Am kind of new to the whole Geo Info systems, I am trying to clip USGS lidar data which is (.laz) format using polygons in a (.shp) file. I am using Python 3.10: with packages laspy, geopandas. I use ...
0
votes
0
answers
42
views
USGS Nationalmap API giving error for certain bbox and polygons
I am using USGS national map API (https://tnmaccess.nationalmap.gov/api/v1/products) to search for Lidar data.
But for certain bbox and polygon this API is giving me error.
Example: https://tnmaccess....
- 101
0
votes
0
answers
38
views
How to fix Earth Explorer doesn't show the images for the new polygon I drew on the map?
I'm using Earth Explorer for getting satellite image ID. I drew a polygon in the map and got images for the Landsat 8 and 9 but now, hours later I want to get image ID of a different place on the map ...
- 101
-1
votes
1
answer
95
views
Negative elevation results from USGS 1 meter DEM [closed]
The USGS 1 meter Digital Elevation Model will return negative elevations. The elevations are based off NAVD88. The negative elevations appear to be near/over water along coastal areas. This DEM is ...
- 1
0
votes
1
answer
99
views
Landsat 4-5 images download issues
I am trying to download Landsat4-5 images via the SCP. I get the same message every time. "no image found, Try with larger area". Even if I choose a huge area, I still get the same msg. I ...
0
votes
0
answers
110
views
Importing DEM into Microstation
Using QGIS version 3.28.2-Firenze. I have a DEM obtained from USGS (EPSG:2927 - NAD83(HARN) / Washington South (ftUS)) which aligns correctly horizontally and vertically when I overlay on top of OSM ...
0
votes
1
answer
151
views
Different spatial coverage in scenes downloaded from USGS LANDSAT data
I am using M2M Python API to download scenes of Landsat 8 data for North America region, as shown in the code snippet below.
datasetName = "landsat_band_files_c2_l1"
spatialFilter = {'...
0
votes
1
answer
158
views
Wanted: The Very Topographic Map WITH Building Footprints The National Map Viewer Displays as Default
I have been trying for 5 solid days to acquire building footprints from USGS topographic maps THAT I KNOW EXIST: I can SEE them on the very topo map which is displayed BY DEFAULT at The National Map ...
- 231
2
votes
2
answers
189
views
Importing DEM ArcGIS REST Servers and Hillshade using QGIS
I'm brand new to GIS and just discovered QGIS.
I've been trying to import either DEMs or LIDAR of my area from the following link:
https://basemap.nationalmap.gov/arcgis/rest/services/...
- 21
1
vote
1
answer
354
views
Python library for downloading L8-9 data from USGS EarthExplorer
A couple of years ago I used to work with Landsat-8 data. I was using kapadia/usgs or yannforget/landsatxplore librairies to download data programmatically from USGS EarthExplorer.
Now I need to ...
- 254
0
votes
0
answers
78
views
Getting blurred image after extracting AOI through shapefile from USGS data
I intended to generate DEM of required location using ArcGIS Pro. Using USGS Earth Explorer, I downloaded the SRTM DEM as a .tiff file for a huge block of area which consists my desired area in it.
...
3
votes
1
answer
183
views
Properly closing GeoPackage after opening by OGR so as to delete it later
I am creating a program that downloads a GeoPackage from online, opens it, makes a copy of the first layer as a shapefile, and then (hopefully) deletes the GeoPackage. However, I'm not able to delete ...
- 790
1
vote
0
answers
23
views
USGS Multiple Dates listed and I want to know what they mean
I want to take a look at a piece of land over time and evaluate the change in topography over time. I am using USGS to download some data and I realized they give you a list of dates that correspond ...
- 11
2
votes
2
answers
554
views
Accessing USGS Map Tiles
I'm developing a Windows desktop app that uses map tile servers to display a scrollable map. It currently supports OpenStreetMap, OpenTopoMap and Bing Maps. I'm looking to see if there is a service ...
- 121
0
votes
1
answer
173
views
Loading data from USGS National Map server in ArcMap
How can I add data from the USGS National Map server to ArcMap?
Specific goal is to load data and processed products like 3DEP hillshades from the TNM Download without having to download it locally, ...
- 960
0
votes
0
answers
229
views
When exporting Map Service layer of USGS topo maps as a GeoTIFF the resolution is always fuzzy. How can I get a better image?
Using QGIS. When I increase DPI the export times out. Image must be Georeferenced because I am bringing it into CAD with other data on State Plane coord. The individual 7.5" Quad JPEGS from the ...
- 1
0
votes
0
answers
46
views
How feasible is it to scan CORONA satellite imagery in the National Archives?
I'm building a dataset of several hundred historical CORONA satellite images for a research project. I know that one can request these images from the US Geological Survey, but new scans cost $30 ...
- 13
5
votes
1
answer
275
views
QGIS slope output problems
I've been trying to calculate slope in percentage for a project I'm working on but keep running into this issue
Whenever I calculate slope using the designated Slope tool or the r.slope.aspect tool I ...
- 93
0
votes
1
answer
140
views
Proj4 string for USGS Bulletin 1532
I'm using an application that uses equations from USGS Bulletin 1532 (see source code - line 295: http://docs.ros.org/en/kinetic/api/robot_localization/html/api/navsat__conversions_8h_source.html#...
- 91
2
votes
0
answers
64
views
Indexing USGS Landsat Collection 2 data in Open Data Cube [duplicate]
The USGS Landsat Collection 2 data has been released for a while and there's no clear way to index it into the Open Data Cube.
Is there a prepare script or some other method that can be used to index ...
- 77
1
vote
0
answers
530
views
Merging LiDAR files using R [closed]
I am downloading LiDAR files (.laz) from https://apps.nationalmap.gov/downloader/#/.
How can I merge multiple files together using R?
Note that this related to Merging multiple LiDAR (.las) files ...
- 125
3
votes
1
answer
554
views
Projection of aerial image using QGIS
I am having a very hard time with a USGS Declass3 image (D3C1210-200272A025).
I have already tried different projections, unfortunately without success.
For sure, the problem is me, but I don't know ...
- 33
1
vote
2
answers
653
views
In Earth Engine, when exporting to drive the raster is shifted
The Problem:
Two identical Landsat scenes were downloaded from two different sources. USGS Earth Explorer and Google Earth Engine. Although both of the scenes are in the exact same coordinate system (...
0
votes
1
answer
502
views
Is it correct to use a 1/3 arc-second DEM to make a 2 ft contour shapefile?
I need 2ft contours for all of Puerto Rico. I have downloaded 1/3 arc-second DEM on the island from the USGS. Would it even be accurate I if I just made these in ArcGIS Pro? All alternatives and ...
- 11
2
votes
1
answer
1k
views
GeoTIFF height map banding/terracing
I'm getting pretty bad banding, terracing, low resolution appearance when importing height maps to QGIS. I've searched the forums and haven't found a solution to this.
Attached are the original USGS (...
- 41
3
votes
1
answer
582
views
Google Earth Engine - USGS Landsat 8 Level 2, Collection 2, Tier 1 metadata, should it differ from USGS guide?
I have been using "USGS Landsat 8 Level 2, Collection 2, Tier 1" and it's 'ST_ARAN' band and getting unexpected results.
On the GEE docs (https://developers.google.com/earth-engine/datasets/...
- 87
0
votes
1
answer
190
views
USGS Bulk Downloader 'No JVM could be found on your system'
I installed Java JRE 10 and the bulk downloader successfully but when I run the bulk downloads application it's popping up with the error message
- 1
1
vote
1
answer
418
views
Landsat collection 2 level 1
I am working on NDWI and MNDWI indices using Landsat 5,7 and 8 to identify permanent water bodies in two images by mosaicing them. When using Landsat collection 1 data I have performed atmospheric and ...
- 11
0
votes
0
answers
74
views
Landsat 5 missing archives in Africa
I am trying to download Landsat 5 tile on USGS explorer from the Landsat Collection 1 and Landsat Collection 2 dataset in order to do temporal analysis.
However, in Africa, I can only retrieve a few ...
0
votes
4
answers
1k
views
USGS Bulk Downloader cannot locate install4j
Trying to run the the USGS' Bulk Download Application (https://www.usgs.gov/media/images/earthexplorer-bulk-download-application-bda) and keep getting an error message that it could not find the JRE. ...
- 309
3
votes
2
answers
560
views
Indexing USGS Landsat Collection 2 Level 2 datasets into Open Data Cube
I'm trying to ingest data using Landsat 8 Collection 2 Level 2 data into the Open Data Cube, but I couldn't find any examples for data preparation.
How do I index USGS Landsat Collection 2 datasets ...
- 41
0
votes
0
answers
110
views
Pdal and Earth Curvature/which EPSG
I am attempting to combine Lidar data that we capture using a scanner (which is real-world accurate) and USGS Lidar data. I am currently using Pdal and Entwine to download and reproject the section of ...
- 1
2
votes
1
answer
672
views
Failing to download SRTM data from USGS
I was used to download SRTM/DEM data from the following link: https://dds.cr.usgs.gov/srtm/version2_1/SRTM3/
But I'm not being able to download anymore, I don't know the exact causes of that, it was ...
1
vote
1
answer
58
views
Massachusetts Woodland Shapefile / GDB Not Rendering Correctly QGIS
I am working on a personal project that utilizes USGS Land Cover Woodland data sets and I seem to have an issue in QGIS where part of the state of Massachusetts is missing / not rendering correctly. ...
- 21
1
vote
1
answer
373
views
USGS topo symbols for light-duty and unimproved roads
Mapping in QGIS 3.14, I want to use the same symbol as the local historical USGS 24K quads use for unimproved road and light-duty road.
An example can be seen here (the black continuous road and the ...
- 23
2
votes
3
answers
288
views
Range of numbers for Township and Range
I am creating a GUI for input of PLSS data (Township, Range, Section).
There will be 5 pull down or spinner components:
Township, North/South, Range, East/West, Section
The North/South component will ...
- 393
1
vote
2
answers
1k
views
Extract USGS satellite image inside a given bounding box
I'm using USGS explorer to extract satellite image. What I want is that given a bounding box, I want to extract satellite image inside the box (see the image attached). I don't want the blur satellite ...
- 271
1
vote
1
answer
291
views
How to index USGS ARD Satellite Data into an Open Data Cube?
I am trying to index a Landsat8-Satellite-Dataset from Massachusetts in the USA. I downloaded the dataset from USGS. Below my question you can find the datacube-metadata.yaml-File. It is surface ...
user166359
2
votes
1
answer
331
views
Why is there no XML-File with metadata when I download Landsat 8 data on USGS?
I am trying to create a Data Cube with Open Data Cube for my Bachelor's Thesis. In the Python-Files from Open Data Cube to prepare the data for indexing there is a XML-File with metadata needed:
https:...
- 21
0
votes
0
answers
81
views
Elevation obtained from USGS DEM is different from Lidar elevation
For a project I'm working on I need to calculate height of objects for which I know their spatial 2D coordinates (e.g. buildings). I'm using Lidar data to extract the highest Z value for an object, ...
- 151
0
votes
1
answer
103
views
Seeking Sentinel L1C images (.SAFE) from 2015-2019 since no longer available on Copernicus Open Access Hub
I am looking for Sentinel images from before 2019 in L1C quality and .SAFE format, as I want to correct them with sen2cor in SNAP to convert them to L2A quality.
Where can I find them now that they ...
1
vote
1
answer
830
views
Why am I getting this error when importing a GDB into QGIS?
I've downloaded the Lunar geology data from USGS here:
https://astrogeology.usgs.gov/search/map/Moon/Geology/Unified_Geologic_Map_of_the_Moon_GIS
While the topography is in ESRI Shapefile format and ...
- 23
2
votes
1
answer
730
views
Split single band layer in QGIS
I have a single band raster layer, namely the USGS Global Mountain Explorer Home K3 dataset.
It is a 8 bit unsigned integer GeoTIFF of 200 Mb, with 4 grey values each corresponding to a mountain ...
- 53
2
votes
1
answer
1k
views
Getting from a USGS historical topographic map to a Unity terrain heightmap
Is it possible to start from a USGS historical topographic map and get to a Unity terrain heightmap? To see an example of the kind of historical topo map I am talking about:
Go to: https://ngmdb....
- 123
0
votes
1
answer
81
views
Calculating LST time-servers graph
i am trying to compute the time series graph of the particular location i m getting this error no idea what to do i m using "MODIS/006/MOD11A"
var lst = lstImg.select('LST_Day_1km')
....
