Patent ID: 11953872
Assignee: MANNA IRRIGATION LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  G  B  Y | IPC B  G

Claim 6:
7. The method of claim 1, said method further comprises generating a near real time combined Kc value (CKcNRT) for use in managing agricultural irrigation during a period of time, the period defined by time t in which high resolution remote sensing data are available and time tx to tnx (tx−tnx) in which high resolution remote sensing data are not available, by performing the steps of:
computing a low resolution near real time Kc value (LRKcNRT) at a time t′ (LRKcNRT(t′)) wherein t′ is between time t to time tnx (t−tnx) by performing the steps of:
receiving remote sensing data from one or more low resolution remote sensors at time t′, wherein the imagery data comprise values associated with at least one pixel, each pixel is greater than 30 m×30 m;
selecting at least one pixel having 67% of the pixel data within the boundaries of the field; and
when more than one pixel is selected:
computing Kc value for each pixel using a remote sensing derived index to obtain a first set of LRKc values;
selecting LRKc values equal to or greater than a number in the range of 0.15 to 0.3 from the first set to obtain a second set of selected LRKc values;
computing a mean of the second set of Kc values to obtain LRKcNRT-M; and
setting LRKcNRT (t′) to equal LRKcNRT-M;

when one pixel is selected:
computing Kc value for the pixel using a remote sensing derived index; and
when the Kc value is equal to or greater than a number in the range of 0.15 to 0.3, setting the computed Kc value LRKcNRT(t′);

computing CKcNRT during the time period t to tnx (t−tnx) by:
at time t, setting the CKcNRT to equal the generated HRKcNRT(t);

at each time point tx to tnx, with each time point incremented by a discrete time amount of x, computing LRKcNRT(tx−tnx) and setting the CKcNRT to equal the sum of HRKcNRT(t)+[(LRKcNRT(tnx) minus (LRKcNRT(t′)].