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Google Maps/Google Earth surveying

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The surveying service uses cartography and elevation data of Google Maps/Google Earth (in order to extract the DEM*).

To use the service you need to:
    • Identify the area to be detected by typing the address or coordinates;
    • Choose from the drop down menu the number of points to detect: the larger is this value, the more accurate the survey will be;
    • Change the zoom and move the displayed area in order to identify the portion of the surface on which to perform the survey: the maximum detectable size is about 1600 hectares;
    • Click on "survey" to perform processing. After the process, you will see a grid above for each vertex the elevation in meters. You can then extract the DEM and satellite maps clicking on the appropriate buttons.

N E X T >>

(*) The DEM is the digital model of a 3D surface, ie the representation of the distribution of elevations on a ground in correspondence of an array of dots arranged at a predetermined spacing.
N.B.: The accuracy of the altimetric data varies from 3 arc-seconds (1 point every 90 meters) to 1/3 arc-second (1 point for every 10 meters), up to 1/9 arc-seconds (1 point every 3 meters) in the U.S. and in many urban areas. The service, made available from Google Maps and Google Earth, comes from the Shuttle Radar Topography Mission (SRTM) project (, U.S. Geological Survey (USGS) ( and others cartographic service. By performing surveys on some sample areas (according to studies in Italy and Nigeria) it's showed a average error about altimetric data of 2,5 meters.. The mapping with satellite maps is always relative to the Google Maps service.
The design commit you occasionally or for short periods? Choose the ON-DEMAND only for the time you need.

The solution for any need

IrriPro softwareIrriPro is available with FREEWARE license for small systems and with basic features, with fully featured for limited time or with never ending LIFETIME licenses.


IrriPro has a CAD-style user friendly interface, designed to be used by engineers, agronomists and other technicians. They have all the analisys tool needed to estimate the consequences of any design choice and to represent the trend of any physical parameter.


The DB is not a list of passive elements, but a way to make the most of the software using existing material on the market.


The irrigation software IrriPro is the only tool that optimizes the use of water and improves the distribution uniformity, increasing the system efficiency and ensuring the correct distribution of water and fertilizers. Moreover IrriPro reduces the system realization costs, improving quantity and quality of agricultural production.