Saudi Arabia

Site Description

Locations

NADEC
Site Extent   Centroid: 24.02 , 49.07
Top left: 24.044 , 48.807 Bottom Right: 23.827 , 49.352

NADEC 31A and 31B
Site Extent   Centroid: 24.02 , 49.18
Top left: 24.039, 49.05 Bottom Right: 24.027, 49.055

Todhia Arable Farm Sub Site
Site Extent   Centroid: 24.176, 48.067
Top left: 24.226, 47.956 Bottom Right: 24.145, 48.087

Todhia Arable Farm
Site Extent   Centroid: 24.224, 47.527
Top left: 24.375, 47.021 Bottom Right: 24.142, 48.089

  • Location: The study was carried out on Todhia farm, which comprises 47 center pivots spread across an area of 6,967 ha, and is located between Al-Kharj and Haradh regions. This commercial farm lies within latitudes 24º10' 22.77" and 24º12' 37.25" N and within longitudes 47º56' 14.60" and 48º05'08.56" E (Fig. 15). Periodic ground truth data for crop type mapping was collected for wheat, alfalfa, Rhodes grass, corn and barley crops on the day of ASTER pass during the year 2012 (February to October). 
  • Topography: Flat terrain with slight undulations experiencing desert environment. The elevation ranges from 329 m to 453 m.
  • Soils: Sandy clay loam
  • Drainage class/irrigation: In natural conditions, the site is considered as very poorly drained soil drainage class.
  • Crop calendar: Fields are under excessive irrigation throughout the growing season/year.
  • Field size: 2500 ha
  • Climate and weather: Hot dry weather
  • Agricultural methods used: High input agriculture

Figure 1: Todhia Arable Farm, Saudi Arabia

Figure 2: Todhia Arable Farm, Saudi Arabia

Color plate 1: Wheat crop at different growth stages

Color plate 2: Alfalfa field under center pivot irrigation system

©2015 Joint Experiment for Crop Assessment and Monitoring
© HER MAJESTY THE QUEEN IN RIGHT OF CANADA SA MAJESTE LA REINE DU CHEF DU CANADA (2015)