Here's an example that hopefully does something like what you want, but you'll need to modify it to meet your requirements for "manually selected marker points" and Sentinel 2.
In general, do NOT use for-loops or getInfo(). To be clear, DO NOT USE FOR LOOPS unless you have a very good reason to be doing so. If you don't know, use map() for all the ...
Some background: The USPS maintains zip codes as sets of delivery zones(5 digit) and routes(+4 digits), usually along streets with address boundaries. USPS does not maintain zip codes in any shape format.
I had the issue of finding a viable source as well. I narrowed my possible solutions to the following 4 and chose to go with #3.
You can download the 5 ...
Taken from https://opendatakit.org/help/form-design/examples/
By default, this widget halts the geo-positioning process once the
geopoint has an accuracy of 5m or less. To change this, you can supply
an "accuracyThreshold" attribute to the tag. I.e., to instruct
ODK Collect to capture geopoints with accuracies of 1.5m or less, use:
Disclaimer: I am the founder of AmigoCloud. Sorry if it seems like shameless self-promotion.
The idea is simple: If you have any popular geospatial format (ESRI Shapefile, FileGDB, KML, Spatialite, CSV, etc) you can use AmigoCloud to replicate that data as vectors (points/lines/polygons), to any standard iPhone/iPad/Android device. You can style and work ...
At day one (2018-01-01) you have 4 images that the code is mosaicking into one. When you add the first image of the resulting collection using Map.addLayer(newcol.first()), you get the mosaic for that day (day 1). The gap is because that day there were no images in that area. You can check it
var tools = require('users/fitoprincipe/geetools:tools')
1) Is there a web-based method for collecting features? (something simpler and more error-resilient than editing a map through the arcgis online interface)
Honestly, the ArcGIS Online interface for editing is pretty straight forward in my opinion, but you could use one of their application templates (i.e. the Editor application) if you feel it offers a more ...
I believe ESRI would be the best people to talk to about this. I've setup Collector a few different times and it's a really cool product, especially when using feature services directly from ArcGIS Server, but there are a lot of different factors that could be causing you problems. Without having your map or data it's impossible to tell you what you're doing ...
The problem is in the creation of the cloud mask. Use:
var mask = image.select(['cfmask']).neq((2,4))
var mask = image.select(['cfmask']).neq(4).neq(1).neq(2).neq(3)
Value 2 and 4 are for cloud shadows and clouds in cfmask.
With a reproducible example:
var col = ee.ImageCollection('LANDSAT/LE7_SR')
As far as I'm aware, the datasources or data sets is extremely sparse and concentrate to particular geographies, not entirely the US. However, these two websites I came across can assist you in finding out more about your data:
A Look at the Kentucky Transportation Cabinet's (KYTC) Billboard Application
USC student uses crowdsourcing to map billboard ...
Here is my example code. To use the code I prepared a QDialog in QtDesigner with a simple QLineEdit named "field" and a QPushButton named "push" - In the form_open() function you have to find these components. Afterwards, clicked signal of the button is connected to function. Try to enter your code in function check_and_set_field_value():
from PyQt4.QtGui ...
I have done something very similar by embedding a web app (where you can set editing options and include widgets) within a story journal. To stop users from deleting the comments of others, you can set the editing properties for the feature layer by selecting 'Edit' from its item details page.
Then set the editing properties to 'Add features only'.
Landsat-8 (and previous missions) imagery is available for free and contains a thermal bands that could be used to perform such an analysis, but at a slightly coarser scale than you suggest. It might be possible to pan-sharpen the thermal band using the panchromatic band (15 m resolution) to improve the resolution (or maybe overlaying / interpolating) and ...
Maybe I'm wrong but don't reinvent the wheel except if you have no choice for the tech behind (it seems you have to because of your devices...).
So, if you can't escape the dev step, look at DotSpatial
It can read and write shp and read GPS data.
Otherwise, I think you should try:
to install GeoPaparazzi (Android oriented). This tool was designed for ...
The plus 4 value is based on the address there is not a single number for a city. It is not a universal number for a region as the first 5 digits are https://www.zip-codes.com/learn-about/what-is-a-zip-4-code.asp . You will need to calculate it against some tiger data if you are trying to get every unique value and tie it to a region.
It would be ...
I think what you want to look at in this case is Survey 123 , it is free if you are already using ESRI Arc products, it allows you to create Forms that you have users fill out and that pushes the data back to your feature class.
You can hide the admin settings by doing those changes :
decompile you apk by using tools like "apk Icon Editor"
go to the decompiled temp folder on "C:\Users[your account]\AppData\Local\Temp\apk-icon-editor"
choose your default admin options once as you want in "C:\Users[your account]\AppData\Local\Temp\apk-icon-editor\apk\res\xml\admin_preferences.xml" by ...
You are almost there. The fact you cannot get an imagecollection from your function now, is that you make a clientside dictionary with dates as key. Instead, first make a server side list of dates seperated a week apart:
//set a list of start dates
var startDate = '2018-02-01';
var endDate = '2018-12-31';
var weekDifference = ee.Date(startDate).advance(1, '...
For you first question, it is possibly bet practice to first make a list of a certain property in every image. You can then get every current and previous image based on the value in the list:
// First make a list of a useful numerical property of the image collection
// and make sure they are ordered by time
var NDVI = filtered.map(myNDVI).sort('system:...
You can scale an image collection by a list of scaling factors using the following approach, which constructs a list of (image, scaling factor) pairs, and then multiplies them together.
// Copyright 2020 Google LLC.
// SPDX-License-Identifier: Apache-2.0
var originalCollection = ee.ImageCollection([
I would suggest looking into Survey123 for ArcGIS is an alternative.
Esri describes it as:
Survey123 for ArcGIS is a simple and intuitive form-centric data gathering solution that makes creating, sharing, and analyzing surveys possible in just three easy steps:
Quickly design powerful surveys and publish them into ArcGIS.
The ZipPlus4 information seems to be available in the (old) Tiger/Line 2000 data. e.g. ftp://ftp2.census.gov/geo/tiger/tgrcd108/FL/tgr12099.zip for Palm Beach County, FL.
According to gdal driver documentation,
Feature Representation Following is a list of feature types, and
their relationship to the TIGER/Line product.
You might look at creating a point feature class with the field structure that you require in ArcGIS, and then checking-out the schema of that fc (or the data, if you plan to carry out field edits to exisiting points) to both the Junos, using the Arcpad Data Manager toolbar. Do the data capture, and then check the data back in to ArcGIS. This will populate ...
Turns out my problem was that the web map was synced and within My Content on Arc Online but I had not shared it with any groups. I did not think I needed to share it unless I wanted to share the map with someone. But, once I shared it with my work group, the map was automatically enabled for offline use and now can be downloaded to the tablet. Fantastic. I ...
I finally found a solution myself: ESRI already developed a perfect web-application called GEOFORM. It adds points which users select to the shapefile, so you can even create your own database without too much work
There is another solution, also from ESRI: Survey123. For some needs it's even better
They are many Python modules to parse XML files (PiPy:xml) but xml.etree.ElementTree is a standard module
With your example
from xml.etree import ElementTree as ET
with open("testodk.xml") as odk:
tree = ET.parse(odk)
coords = tree.find('KOORD')
56.1234 13.1234 70.1234 7.1234
name = tree.find('NAME')
This is known as 'concording' (well, I thought it was, but I can't Google it, so it might not be).
Basically, it's a very difficult thing to do. It's unfortunate that the ABS change their boundaries every census, and the 'mesh blocks' were intended to stop this, I think, but even they change a bit.
Essentially, what you'd need to do is split up your FIRST ...
I have corrected these types of errors before by making copies of the CORS base stations' properties, and changing the internet server property parameter "&duration=%LL%&" to "&duration=24&". This tells the service to download 24 hours worth of data, ensuring 100% coverage for processing. Otherwise I consistently get 24% coverage...
I assume the positions which do not post-process are in similar GPS conditions to positions which do post-process (i.e. you are not randomly walking under trees every hour and standing in the open the rest of the time.)
In my experience (I use Trimble TerraSync and PathFinder Office post-processing at least once a week) the most likely cause of problems ...
Disclaimer: I am the founder of the company responsible for developing this app.
I know this is an old question, but I want to put forward a mobile app that could be used by your team: the Coral App.
It is available on both Android and IOS. You can customize your forms on a web dashboard, collect data efficiently in the field and export your data after ...