Output datasets from Trends.Earth¶
The spatial data produced by is in GeoTiff format. This is a
widely supported format, so these datasets can be used within QGIS as well as
within any other GIS software.
If you wish to use data outside of the tool itself, you will need to
know how the data is coded. The tables below provide guidance on what the exact
layers are that are produced by each analysis in
.
To see which of the below layers is contained within a output
file, use the load data tool. When you
choose a file with that tool, it will show you a list of the layers within
that file, as well as the band number for each layer.
Land degradation (SDG 15.3.1)¶
SDG 15.3.1 Indicator¶
Value |
Meaning |
---|---|
-32768 |
No data |
-1 |
Degradation |
0 |
No change |
1 |
Improvement |
Productivity¶
Productivity trajectory (trend)¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Linear trend of annually integrated NDVI, scaled by 10,000 |
Productivity trajectory (significance)¶
Value |
Meaning |
---|---|
-32768 |
No data |
-3 |
Significant decline (p > .99) |
-2 |
Significant decline (p > .95) |
-1 |
Significant decline (p > .90) |
0 |
No significant change |
1 |
Significant increase (p > .90) |
2 |
Significant increase (p > .95) |
3 |
Significant increase (p > .99) |
Productivity performance (degradation)¶
Value |
Meaning |
---|---|
-32768 |
No data |
-1 |
Degradation |
0 |
No change |
Productivity performance (ratio)¶
Value |
Meaning |
---|---|
-32768 |
No data |
0 |
Ratio of mean NDVI and maximum productivity. See background on performance. |
Productivity performance (units)¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
ID number of unit used to calculate performance. See background on performance. |
Productivity state (degradation)¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Change in productivity state classes between baseline and target period, calculated as the rank in the target period minus the rank in the baseline period. Positive values indicate improvement, negative values indicate decline. |
Productivity state classes¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Percentile class for productivity state. See background on productivity state. |
Productivity state NDVI mean¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Mean annually integrated NDVI for the baseline period chosen for productivity state, scaled by 10,000. See background on productivity state. |
SDG 15.3.1 productivity indicator¶
Value |
Meaning |
---|---|
-32768 |
No data |
1 |
Declining |
2 |
Early signs of decline |
3 |
Stable but stressed |
4 |
Stable |
5 |
Increasing |
Land Productivity Dynamics - JRC¶
Value |
Meaning |
---|---|
-32768 |
No data |
1 |
Declining |
2 |
Moderate decline |
3 |
Stressed |
4 |
Stable |
5 |
Increasing |
Land cover¶
Land cover (degradation)¶
Value |
Meaning |
---|---|
-32768 |
No data |
-1 |
Degradation |
0 |
No change |
1 |
Improvement |
Land cover (7 class)¶
Value |
Meaning |
---|---|
-32768 |
No data |
1 |
Tree-covered |
2 |
Grasslands |
3 |
Cropland |
4 |
Wetland |
5 |
Artificial |
6 |
Other land |
7 |
Water body |
Land cover (ESA classes)¶
Value |
Meaning |
---|---|
-32768 |
No data |
10 |
Cropland, rainfed |
11 |
Herbaceous cover |
12 |
Tree or shrub cover |
20 |
Cropland, irrigated or post‐flooding |
30 |
Mosaic cropland (>50%) / natural vegetation (tree, shrub, herbaceous cover) (<50%) |
40 |
Mosaic natural vegetation (tree, shrub, herbaceous cover) (>50%) / cropland (<50%) |
50 |
Tree cover, broadleaved, evergreen, closed to open (>15%) |
60 |
Tree cover, broadleaved, deciduous, closed to open (>15%) |
61 |
Tree cover, broadleaved, deciduous, closed (>40%) |
62 |
Tree cover, broadleaved, deciduous, open (15‐40%) |
70 |
Tree cover, needleleaved, evergreen, closed to open (>15%) |
71 |
Tree cover, needleleaved, evergreen, closed (>40%) |
72 |
Tree cover, needleleaved, evergreen, open (15‐40%) |
80 |
Tree cover, needleleaved, deciduous, closed to open (>15%) |
81 |
Tree cover, needleleaved, deciduous, closed (>40%) |
82 |
Tree cover, needleleaved, deciduous, open (15‐40%) |
90 |
Tree cover, mixed leaf type (broadleaved and needleleaved) |
100 |
Mosaic tree and shrub (>50%) / herbaceous cover (<50%) |
110 |
Mosaic herbaceous cover (>50%) / tree and shrub (<50%) |
120 |
Shrubland |
121 |
Evergreen shrubland |
122 |
Deciduous shrubland |
130 |
Grassland |
140 |
Lichens and mosses |
150 |
Sparse vegetation (tree, shrub, herbaceous cover) (<15%) |
151 |
Sparse tree (<15%) |
152 |
Sparse shrub (<15%) |
153 |
Sparse herbaceous cover (<15%) |
160 |
Tree cover, flooded, fresh or brakish water |
170 |
Tree cover, flooded, saline water |
180 |
Shrub or herbaceous cover, flooded, fresh/saline/brakish water |
190 |
Urban areas |
200 |
Bare areas |
201 |
Consolidated bare areas |
202 |
Unconsolidated bare areas |
210 |
Water bodies |
220 |
Permanent snow and ice |
Land cover (transitions)¶
Value |
Meaning |
---|---|
-32768 |
No data |
1 |
Tree-covered - Tree-covered (no change) |
2 |
Grassland - Grassland (no change) |
3 |
Cropland - Cropland (no change) |
4 |
Wetland - Wetland (no change) |
5 |
Artificial - Artificial (no change) |
6 |
Other land - Other land (no change) |
7 |
Water body - Water body (no change) |
12 |
Forest - Grassland |
13 |
Forest - Cropland |
14 |
Forest - Wetland |
15 |
Forest - Artificial |
16 |
Forest - Other land |
17 |
Forest - Water body |
21 |
Grassland - Forest |
23 |
Grassland - Cropland |
24 |
Grassland - Wetland |
25 |
Grassland - Artificial |
26 |
Grassland - Other land |
27 |
Grassland - Water body |
31 |
Cropland - Forest |
32 |
Cropland - Grassland |
34 |
Cropland - Wetland |
35 |
Cropland - Artificial |
36 |
Cropland - Other land |
37 |
Cropland - Water body |
41 |
Wetland - Forest |
42 |
Wetland - Grassland |
43 |
Wetland - Cropland |
45 |
Wetland - Artificial |
46 |
Wetland - Other land |
47 |
Wetland - Water body |
51 |
Artificial - Forest |
52 |
Artificial - Grassland |
53 |
Artificial - Cropland |
54 |
Artificial - Wetland |
56 |
Artificial - Other land |
57 |
Artificial - Water body |
61 |
Other land - Forest |
62 |
Other land - Grassland |
63 |
Other land - Cropland |
64 |
Other land - Wetland |
65 |
Other land - Artificial |
67 |
Other land - Water body |
71 |
Water body - Forest |
72 |
Water body - Grassland |
73 |
Water body - Cropland |
74 |
Water body - Wetland |
75 |
Water body - Artificial |
76 |
Water body - Other land |
Soil organic carbon¶
Soil organic carbon (degradation)¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Percentage change in soil organic carbon content (0 - 30 cm depth) from baseline to target year. Positive values indicate increase, negative values indicate decrease. |
Soil organic carbon¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Soil organic carbon content (0 - 30 cm depth) in metric tons per hectare |
Drought hazard, vulnerability, and exposure¶
Standardized Precipitation Index (SPI)¶
Value |
Meaning |
---|---|
-32768 |
Meaning |
Any other value |
Standardized precipitation index, scaled * 1000 |
Population at maximum drought¶
As an indicator of population exposure to drought, Trends.Earth’s drought tools produce a layer assessing total population (or male or female population, depending on the selections made by the user) at time of maximum drought. For the purpose of these analyses, drought is defined as an SPI less than -1.0 (a lag 12 SPI is the default used in the tool).
Value |
Meaning |
---|---|
-32768 |
Meaning |
Any negative value |
A positive value indicates a pixel was exposed to drought (defined as SPI < -1) during a particular (typically four- year) period. The pixel value indicates the population of the pixel at the time of maximum drought. |
Any positive value |
A positive value indicates a pixel was not exposed to drought during a particular (typically four-year) period. The pixel value indicates the maximum population of the pixel during the period. |
Sustainable urbanization (SDG 11.3.1)¶
Urban¶
Value |
Meaning |
---|---|
-32768 |
No data |
1 |
Urban |
2 |
Suburban |
3 |
Built-up rural |
4 |
Open space (fringe) |
5 |
Open space (captured) |
6 |
Open space (rural) |
7 |
Open space (fringe water) |
8 |
Open space (captured water) |
9 |
Open space (rural water) |
Urban series¶
Value |
Meaning |
---|---|
-32768 |
No data |
-1 |
Water |
1 |
Built up by 2000 |
2 |
Built up by 2005 |
3 |
Built up by 2010 |
4 |
Built up by 2015 |
Population¶
Population density¶
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Population density in persons per sq km |
Population (total, male, or female)¶
This output draws on data from the WorldPop project. Depending on the tool used in Trends.Earth, population outputs can be: total population (male and female), total male population, or total female population. The pixels values in each all are coded the same way, and refer to actual population counts per grid cell.
Value |
Meaning |
---|---|
-32768 |
No data |
Any other value |
Population density in persons per sq km |