Skip to content
Sign in

Satellites and data sources

TerraScane analyzes your parcels with Sentinel-2; Landsat 5, 7, 8, and 9; and MODIS imagery, and calculates slope and aspect from the Copernicus DEM. With Landsat 5, the archive goes back to 1984; since 2017, Sentinel-2's 10-meter imagery also shows you the differences within the parcel. You choose the dataset in the panel, based on the year you want to look at and the size of your parcel.

Start a pilot

Date ranges you can select in the panel

Hatched section (SLC-off): Landsat 7 images after May 31, 2003 have data gap stripes caused by the scan line corrector failure.

Show table
Satellite and elevation data used in the analyses
SatelliteResolutionDate rangeIndices
Sentinel-210 mMarch 28, 2017 to presentAll 13 spectral indices
Landsat 8 and 930 mApril 11, 2013 to present12 indices (all except NDRE) and surface temperature
Landsat 730 mMay 28, 1999 to January 19, 202412 indices (all except NDRE) and surface temperature
Landsat 530 mMarch 16, 1984 to May 5, 201212 indices (all except NDRE) and surface temperature
MODIS1,000 mFebruary 18, 2000 to presentNDVI, EVI
Copernicus DEM (GLO-30)30 mNo date to selectSlope, Aspect
Finest resolution
10 m, Sentinel-2
Archive start
March 16, 1984, Landsat 5
Datasets
Sentinel-2; Landsat 5, 7, 8, and 9; MODIS; and Copernicus DEM
Indices
13 spectral indices and surface temperature
Elevation model
Copernicus GLO-30 (30 m): slope and aspect
Image count
Stated in the report for each period

How many pixels fit in a hectare

Resolution is the side length of the square that one pixel covers on the ground. One hectare holds 100 Sentinel-2 pixels or 11 Landsat pixels; a single MODIS pixel covers 100 hectares.

  • Sentinel-210 m

    100

    pixels in one hectare

  • Landsat30 m

    11

    pixels in one hectare

  • MODIS1,000 m

    100 ha

    area of one pixel

The MODIS column is drawn at one tenth of the scale: the large square is one MODIS pixel, and the small square in the middle is one hectare.

Choose Sentinel-2 for small parcels and from 2017 on, and Landsat for earlier years.

Datasets

The date range is the first and last date you can select for that dataset in the panel. You can find the index formulas on the indices page.

How images are prepared for analysis

  1. You choose the dataset, period, and cloud threshold in the panel.

  2. The platform filters out cloudy areas in the images for the period.

  3. The platform combines the remaining images and calculates the result for the period.

  4. The report states the number of images used and gives a warning if there are fewer than three.

Two ways to work with us

Without signing up, you can run 5 analyses on 2 parcels of up to 7,500 hectares each. If you would like us to run the analysis, let's start with a pilot on a single parcel.

Start a pilot

Other platform pages

Contains modified Copernicus Sentinel data 2020, 2026