Visualization data

Explore our data with the map server interface.

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Description

This tool allows the user to visualize and obtain statistical data on decrease detections from 2004 until the most recent data at different levels or target areas such as country, second and third administrative level, protected and indigenous areas or ecosystems. The information is expressed in line and bar graphs that show the time-series of habitat loss within each year as well as its accumulated value, respectively. In addition, the tool allows downloading of: (1) reports* that compile relevant information (rates of change, percentage of analyzed area, the most affected areas, the most affected years, among others); and (2) statistical tables of the target data (administrative levels, protected areas, indigenous areas or ecosystems) in .csv format.

Additionally, the “Download data” tab contains a brief description of the data, the sources, limitations, recommendations and references.

Note: * These reports are currently only available at the country level.

Map

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Initial interface to visualize the data. Selection of the target information to extract at the country level.

Select a country and then choose the target information to extract (national level, second or third administrative level, protected or indigenous areas, or ecosystems) (Figure 1). The viewing pane displays the Terra-i detections represented in a range of colors, from yellow to red, with yellow indicating the oldest detections and pink the most recent data analyzed.

Statistics in real time

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Near real time statistics of decrease detections per 16-day period per year for Colombia Optionally,

In this section, line charts can be created comparing the area changed (hectares) per 16-Julian day interval per year, from the first date of detection (2004) until the latest update (October 2012). This graphic is helpful to indicate which date or range of dates (in Julian days) reported the largest area change in hectares per year. Figure 2 shows the line chart of decrease detections in real time for Colombia: For example, for the year 2010 Julian date 17 there was a change in area of 20,693.75 ha. In addition, Julian date and are of change values are displayed when the mouse cursor is placed over a point on the chart. Optionally, the chart has the capability of disabling or highlighting certain years. To do this, click on the year symbol in the legend to disable or reactivate.

Annual statistics

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Annual statistics for the Department of Amazonas (Colombia).

Under this tab, the annual rates of change (hectares per year) are displayed in bar charts from 2004 until the last update. This chart may indicate which year(s) were most affected by habitat loss, an analysis that can be done by different administrative levels or other areas of interest. Figure 3 shows an example of the annual deforestation rate for the Department of Amazonas, Colombia, noting that the highest rate of change (7,262.5 ha) was experienced in 2011 in comparison to the other years.

As with the line charts, detailed value information can be obtained placing the mouse cursor over a bar. Bar charts can also be downloaded and/or printed in different image formats (PNG, JPEG, SVG) or as a document (PDF).

Data download

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Data download

This section allows detection data to be downloaded, including a full report (.pdf format). The report contains relevant information for posteriori analyses such as total decrease rates as well as the most affected years by country, second administrative level, ecosystems, and/or protected and indigenous areas. The main aim of these reports is to deliver to the user a synthesis of information extracted from the Terra-i tool.
In addition, the user can download tables in .csv format with information from different levels (national, second and third administrative level, ecosystems, protected and indigenous areas). Each table contains the area change (hectares) by Julian period within the years analyzed as well as the estimate of the annual decrease rate.

Finally, a short text on the distribution and reference sources of the data includes a description, limitations, and recommendations