Patent ID: 11963488
Assignee: TATA CONSULTANCY SERVICES LIMITED
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 7:
8. A system for root zone soil moisture estimation under vegetation using remote sensing, comprising:
a memory storing instructions; and
one or more hardware processors coupled to the memory, wherein the
one or more hardware processors are configured by the instructions to:
estimate bare surface soil moisture associated with bare soil in a geographical area by applying a soil moisture estimation model to a remote sensing derived data, the remote sensing derived data obtained under no-vegetation condition in the geographical area using a remote sensing technique;
estimate, at a plurality of time-instants, vegetation surface soil moisture associated with the soil in the geographical area under vegetation cover on the soil, the vegetation surface soil moisture at the plurality of time instants computed based on the bare soil moisture, a soil parameter, a weather parameter, a crop parameter, one or more time-series satellite derived remote sensing parameters, wherein the one or more time-series satellite derived remote sensing parameters derived based on optical sensing data obtained at the plurality of time instants;
estimate a point-based root zone soil moisture using a using soil water balance model, wherein the soil water balance model computes root zone water balance on a periodic basis based on water stored in the root zone at periodic intervals, and precipitation, irrigation, drainage and evapotranspiration amount of water during the periodic intervals; and
determine spatially distributed root zone soil moisture at the geographical location using the vegetation surface soil moisture and point based root zone soil moisture.