Data Model

The data model correspond to the main sampling patterns usually available for Earth Observation data. For each typical sampling pattern, cerbere provides a unique representation for them, so that common data handling or display operations are implemented uniquely and through a common interface.

Structure

The following table describes the dimensions and geolocation variables associated with each data model :

Pattern Dimensions (size) Geolocation fields (dimensions) Geophysical field (dimensions)
Swath
  • row (y)
  • cell (x)
  • time (row,cell)
  • lat (row,cell)
  • lon (row,cell)
V (row, cell)
Image
  • time (1)
  • row (y)
  • cell (x)
  • time (time)
  • lat (row,cell)
  • lon (row,cell)
V (row, cell)
grid
  • time (1)
  • y (y)
  • x (x)
  • time (time)
  • lat (y,x)
  • lon (y,x)
V (y, x)
grid time series
  • time (t)
  • y (y)
  • x (x)
  • time (time)
  • lat (y,x)
  • lon (y,x)
V (time, y, x)
point collection
  • station (x)
  • time (station)
  • lat (station)
  • lon (station)
 
time series at a point
  • station (1)
  • time (t)
  • time (t)
  • lat (station)
  • lon (station)
 
trajectory
  • time (t)
  • time (t)
  • lat (t)
  • lon (t)
 
spatial section      
section time series