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Questions tagged [data-collection]

For questions related to the collection of geospatial data.

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0answers
23 views

Obtaining coordinates of points on highways [on hold]

As a disclaimer, I'm extremely new to this field. I'm trying to obtain the geographic coordinates of points of fixed distance apart on interstate highways in the United States. I have been able ...
1
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1answer
23 views

Getting weekly mean composite in Google Earth Engine?

I am currently working on a time-series in Google Earth Engine. Iam still quite inexperienced, especially when it comes to functions. I want to extract the mean values of Sentinel1-images for each ...
0
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1answer
116 views

Google Earth Engine: How to avoid gaps in date-wise image mosaicks?

This question is a follow-up to the excellent answer of Rodrigo E. Principe here: Mosaicking a Image Collection by Date (day) in Google Earth Engine I am trying to apply the suggested code to gather ...
0
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1answer
165 views

Apply a mask to multiple images(for same geo location) in a image collection

I have a image collection which holds multiple images of the same area. I can apply mask individually to those images but how do I apply a mask to all the images in the collection. Say the mask i have ...
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0answers
60 views

Alternative option for Collector for ArcGIS [duplicate]

I am a college student at Penn State and am working on creating an app for the north country trail in butler county. The app mainly consists of a feature layer for users of the trail to report ...
2
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0answers
362 views

Data collector mobile app with mapping capabilities

At work we have a GIS solution platform with 50+ GB of data in a Postgres cluster. Almost all tables have spatial columns. We have several clients consuming this information for different needs. I'm ...
2
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0answers
85 views

Outline overview for available datasets in QGIS

Assuming you have several 100 000 files on your discs which are all georeferenced which are all readable within QGIS (Raster maps, sqlite maps, vector maps, shapefile etc.) After 20+ years in ...
0
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0answers
204 views

Google Earth Engine: Stack an ImageCollection

Does anyone know how can I stack all this collection? I made my own collection from January Landsat images (L7 and L5) and I would like to stack all the images to check which are the areas with more ...
2
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1answer
1k views

Field data collection for QGIS? [closed]

I'm new to the open-source GIS world, having abandoned ArcGIS due to costs, and am looking for an OS analog to the Collector app. What I'm seeking to do is collect field data with an Android cell ...
4
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1answer
1k views

How to apply a Cloud Mask in a collection?

I am trying to apply a mask cloud in a SAVI collection (LANDSAT) to get a chart with time variations between pixels. var region = table3 Map.addLayer(table3) var col = ee.ImageCollection('...
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2answers
113 views

ESRI Collector app- Offline record collection limit

I am wanting to find out what the maximum number of records people have collected while being offline on the ESRI Collector app. I am operating on an Ipad with a 64 GB capacity. Has anyone load ...
2
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2answers
1k views

“Batch processing” data of multiple ROIs in Google Earth Engine

I have written a rather simple script for data selection and subsequent export in GEE: //Create region of interest -> Should be replaced by manual selection of ROIs or ROI center points and ...
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0answers
187 views

Field data inspection and collection using GeoODK?

In my workplace we are looking at collecting and inspecting GIS data using free mobile apps. The one that is fit-for-purpose from a data collection point of view is GeoODK. I have been able to prepare ...
1
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1answer
102 views

Collecting offline spatial data on iPads? [closed]

I a looking for an iOS app or any approach, that will allow me to do offline map-based surveys and upload the data back to one single database once I am online (like the Esri Collector), but: in ...
-3
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1answer
77 views

Acquiring data of Billboards on USA [closed]

I have this task on ArcGis consisting on retrieving landownership data of every billboards' in USA, etc... from where should I start ?
7
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4answers
3k views

US ZIP Codes +4 By State or County- Shapefile (or table/dbf)

I am looking for Zipcode data with the +4 digits at the end for a City (I can use it by state and clip the points to my municipal boundary). I called the post office and had no luck (national customer ...
1
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0answers
330 views

How to read NMEA message using GPSD? [closed]

I am trying to read NMEA messages via GPSD (http://www.catb.org/gpsd/), but I do not know how to do that. I have a GPS antenna which connects to the u-blox M8 GNSS Evaluation Kit Timin (https://www.u-...
0
votes
1answer
60 views

Form Creation for use in ArcMap [closed]

I am using ArcMap 10.2. I am trying to create a form to use in the field (on a construction site). This form will be used to inspect features such as a inlet. My main goal is to have the ...
2
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0answers
136 views

Obfuscating location? [closed]

I have a webservice where I have one solution to obfuscate location called Points of interest which are predefined points scattered around an area. When ever a user send their coordinates from their ...
3
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1answer
1k views

Arc collector: cannot enable offline mode for map

I am trying to setup arc collector for offline data collection in remote areas. I have followed steps from a few ESRI tutorials, Problem: when I try to "enable offline mode" for the web map within ...
2
votes
0answers
168 views

Trimble Access vs. TerraFlex: Which is simpler for creating data entry forms? [closed]

I am working on an archaeological project and need to create forms for users in the field to use and take photos. I am renting a Trimble GNSS unit and can get Trimble Access for free with the unit, or ...
2
votes
1answer
89 views

collect location via form [duplicate]

I'm trying to find if there is some solutions for collect data from users via some easy form (not google forms, something more powerful)? I heard about arcgis collector, but you have to log in (so ...
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0answers
88 views

How can I draw points on my mobile and then pass it to my computer? [closed]

we are doing a survey to know how many people still use outside bathrooms in the Caribbean, I want to go house by house using a shapefile image on mobile and point the location of points of interest ...
3
votes
1answer
755 views

Button to run Python Script on Custom Form Open QGIS

I'm very new to QGIS and Python (although years ago had some programming experience with C++), but have been muddling through with a fairly large project cataloging cemetery plots at the moment. I ...
1
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0answers
56 views

Points to Path does not work [closed]

I have a data set from a collard animal separated by days, I want to create an individual line from each day of data to know how the animal has moved in the forest. When I use the plugin points2path ...
2
votes
2answers
359 views

Is there an easy way to read output from Open Data Kit in QGIS?

I use Open Data Kit (ODK) to do field collection of points of interest. ODK outputs each collected point as an XML-file with a structure like so: <?xml version='1.0' ?> <data id="...
0
votes
1answer
148 views

How to sequence points for GPS collection?

I have a large number of points representing assets that I need to field verify. Their unique IDs reflect when they were created, which is not a good indicator of how close they are to each other. ...
1
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0answers
117 views

How to get users click a map (OSM) and collect location data plus parameters?

I wonder if there is a simple service out there on the web that allows to collect location data from users easily. A click on a OSM map should give the location, then a form to collect a comment, ...
2
votes
1answer
63 views

Recast data from one geographic standard to another

I'm working right now a project looking at medical labour supply in rural areas in Australia. I aim to use STATA for most of this analysis, but a change in geographic standards by the Australian ...
2
votes
2answers
415 views

Trimble Pathfinder Differential Correction: ‘Uncorrected’ for block of GPS data

I’ve been collecting GPS point data without problems over the last few months. Recently, on two dates, after using Pathfinder differential correction, the exported records’ Corr_Type changed from ...
0
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1answer
148 views

Participative maps for collecting geographic information? [duplicate]

I'm looking for a simple way to collect information for a participative plans (regarding landscape) and show them on Google Maps. I'm thinking to a small web form for asking information to public (es:...
1
vote
1answer
225 views

Protected general and admin settings in GeoODK app

I was wondering how to prevent the user to change the general and admin settings of the GeoODK (android-collect)? I mean to be protected with a password, for example. I've tried to go to settings > ...
2
votes
1answer
941 views

Getting started with RTK base stations

My employers are looking into a partnership with a company that provides RTK base stations (they specialize in Topcon equipment) and are planning to replace our old total station with a Topcon HiPer ...
0
votes
2answers
80 views

Is it possible to append the same type of shapefile captured on two different Trimble Juno 3b's with ArcPad 10?

I will soon have access to two Trimble Juno 3b's which will both have ArcPad 10. I have done some practice with one Juno 3b and I am very confident with my ability to use them. All I need to know is ...
1
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0answers
140 views

Collecting and editing local data on a tablet?

I need to view, collect, and edit data that has to be stored locally on an iPad, though we may be able to get an Android tablet if that's the OS with a solution right now. This data cannot go through ...
2
votes
1answer
1k views

How to change ODK GPS accuracy threshold?

I am using ODK with ONA in XLSForm. As the GPS accuracy default is 5 meters, it automatically accepts it when it reaches 5 meter. Is it possible to change the default accuracy to less than 5 meters (i....
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0answers
77 views

Data Collection Solutions

I am seeking a new data collection software for a team of biologists who track migrating animals from planes through aerial telemetry. I currently use Delorme TOPO USA but when collecting point data ...
3
votes
1answer
423 views

Collecting polygon features from many people with simple online form? [closed]

I work at a transportation consulting firm that works over a large geographic area with dispersed offices. We'd like to develop a database of the locations of our projects, so that we can easily find ...
1
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0answers
3k views

ArcGIS Collector on Android failing to upload multiple features with attachments

I have a data capture map in ArcGIS Collector working correctly on a Samsung Galaxy Note 8 (Android 4.1.2) and a Samsung Galaxy Tab 4 (Android 4.4.2). I also have the same map working in the ArcGIS ...
3
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1answer
255 views

Thermal Map Data

I am curious about making a thermal map to display where the hot spots and where the cool spots in a community are. Obviously the roads will be hot and the shaded areas with trees will be cool but ...
2
votes
1answer
203 views

What sub-meter geolocation solutions exist and how can I integrate them into a web and mobile mapping workflow?

I am the manager of seven water systems. What I am trying to do is map out every meter and valve on to a map and then my workers can have the maps on their iPhones so when they have to go fix a water ...
7
votes
5answers
1k views

Field Data Collection Tool

I'm new to Stackexchange so please forgive me if I make an error in how I ask my question. I'm investigating the options available to my employer for the development of a Geological Field Data ...
1
vote
2answers
5k views

Setting up account to start using Collector for ArcGIS?

I'm working on a presentation topic around mobile-based data collection solutions. I've used ODK and Fulcrum in production and absolutely love them. However, I'm going to be presenting to an Esri ...
3
votes
1answer
643 views

How to use Collect Values and Tabulate Areas in ModelBuilder?

I have problems with the Tabulate Area tool. The polygons in my shapefile overlap and because of this ArcMap does not calculate proper values. I try to solve this using ModelBuilder where it is ...
2
votes
3answers
1k views

How to use ArcGIS Online Web Maps/Apps to Collect Community Input securely?

I want to set up a computer at a public hearing that runs an ArcGIS Online Web Application from my subscription account where citizens can choose from predefined editable point layers I've already ...
2
votes
0answers
173 views

Developing Carto Mobile App

I have the project to develop a mobile application (Android) being able to get offline maps, go on the field, collect datas about the area we're at and then synchronize it with our data server when we'...
1
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0answers
78 views

Where to find Data with site that have hazardous, toxic or radioactive substances?

Does anybody know where to find data that lists the location of sites that have hazardous, toxic or radioactive substances? I'm working on a HUD project and need to be able to find out if sites for ...
4
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2answers
98 views

Where can I find spatial data on polar fish populations?

Where can I find spatial data on polar fish populations? I am looking specifically for polar cod, but any fish will do at this point in my project. I also need arctic ocean salinity, temperature, and ...
3
votes
2answers
5k views

How to easily enter a point feature in ArcGIS? (arcmap10)

My job requires me to enter point features into ArcGIS 10 which correlate to underground RFID markers that mark underground telecom infrastructure. Right now, the workflow requires someone to go out, ...
13
votes
6answers
4k views

What iOS (iPhone/iPad) app from the App Store can I use to collect data?

What iOS app from the iTunes App Store can I use to collect data (mainly points, perhaps photos) and later import them into my GIS? I am mainly interested in an out-of-the-box solution, not develop ...