Accessing TREmaps™

1 Go to TREmaps™ at tremaps5.tre-altamira.com
(Note: TREmaps™ is compatible with most internet browsers. For best performance, Google Chrome is recommended)
2 Enter your credentials

TREmaps - Login

Overview

1 Project panel 2 TREmaps™ tools 3 Locate tool 4 Logoff 5 Scale 6 Latitude & longitude coordinates 7 3D visualization 8 Navigation tools 9 Basemap options

Overview

Viewing data

1 Click on the name to activate the project
2 Expand the headings
3 Toggle layer on to visualize the layer
4 View layer properties, if needed

Viewing data
arrow

Option to download the data

1 Expand the project properties
2 Click on the download icon to download all the layers associated to the project
3 A message appears showing the download percentage. Once the download is complete, the zip file is automatically saved in the user’s Downloads folder

Option to download the data

Tools overview

Tools overview1 Individual & multiple time series
2 Individual & multiple average time series
3 Cross-section tool
4 Export data

View individual Time Series (TS)

1 Select the TS tool (default)
2 Click any point
3 A pop-up window appears with the associated TS

View individual Time Series (TS)

View multiple TS in one window

1 Select the TS tool (default)
2 Click on a point
3 Press Shift and click on other points
4 A pop-up window automatically appears after the first click and subsequent TS are added with the Shift function

View multiple TS in one window

Average TS for a group of points

1 Select the Average TS tool
2 Draw a polygon around a group of points. Double click to close the polygon
(Note: Up to 1000 pts can be averaged)
3 A pop-up appears with the associated average TS

Average TS for a group of points

TS Viewer tools

These tools are available in the top right corner of the TS window for every individual, multiple or average TS

1 Zoom
2 Pan
3 Reset axes
4 Add toggle spike lines
5 Show closest data on hover
6 Compare data on hover
7 De-trend
8 Download plot as “.png”

Create a cross-section

1 Select the Cross-section tool
2 Draw a line for the cross-section. Double click to end line
3 A pop-up window automatically appears. Enter the number of cells and the dimensions for the cells

Create a cross section

4 The cross-section profile appears in a new window

Create a cross section

Export data

1 Select the Export button
2 Draw a polygon around the area to be exported. Double click to close the polygon
(Note: only a maximum of 1000 points can be exported at once)
3 In the pop-up window, choose the output format (CSV, Geodatabase, Shapefile, KMZ) and enter a name for the file
4 The exported data is automatically downloaded to the user’s Download folder. The exported data has coordinates in WGS1984 Web Mercator and metric units

Export data

Temporal Filter on TS

1 View the layer properties
2 Zoom in to the main features of interest until the temporal filter tool becomes enabled
(Note: The zoom extent should contain less than 1000 points)

Temporal Filter on TS

3 Click on the Temporal Filter tool
4 In the pop-up window, select the dates for the period of the filtered data

Temporal Filter on TS

5 Click on the points and open the filtered TS
(Note: the symbology, i.e. colors of the points, of the filtered data is also automatically updated considering the rates of the filtered period)
6 To disable the TS filter, click on the Temporal filter tool again or zoom out

Temporal Filter on TS

TREmaps™ tips

  • See more average time series on the same figure.
  • Display several average time series and single time series in the same figure.
  • Draw a linear regression for each TS (average and single).
  • The Projects panel can be collapsed.
  • The Legend is automatically displayed when a layer is visible. The legend window can be collapsed and moved.
  • The properties of each layer also include transparency options and metadata information such as the product, satellite, geometry and analysis period.
  • The minimized Time Series and Cross-section windows are located in the lower left hand corner of the browser window.
  • The 3D view only allows visualization of layers and user-drawn polygons and cross-section lines. The TREmaps™ tools are currently inactive in the 3D view.
  • Error messages are displayed in the lower right hand corner of the browser window.