TY - JOUR AU - D'Urso, Guido PY - 2010/06/30 Y2 - 2024/03/29 TI - Current Status and Perspectives for the Estimation of Crop Water Requirements from Earth Observation JF - Italian Journal of Agronomy JA - Ital J Agronomy VL - 5 IS - 2 SE - Original Articles DO - 10.4081/ija.2010.107 UR - https://www.agronomy.it/agro/article/view/ija.2010.107 SP - 107-120 AB - This paper presents an overview of current techniques and recent developments in the application of Earth Observation<br />data for assessing crop water requirements. During recent years there has been much progress in understanding<br />land surface-atmosphere processes and their parameterisation in the management of land and water resources.<br />This knowledge can be combined with the potentiality of Earth Observation techniques from space, which<br />are able to provide detailed information for monitoring agricultural systems.<br />As today, two main developments in the field of Earth Observation data acquisition and analysis have occurred:<br />a) availability of new generations of sensors, with enhanced spectral and spatial resolution;<br />b) detailed knowledge of the processes that determine the response of land surface as detected from remote sensors<br />in different regions of the electromagnetic spectrum.<br />These advancements have made possible a &ldquo;quantitative&rdquo; approach in the interpretation of Earth Observation data,<br />ready for being transferred to operative applications i.e. for irrigation scheduling and water management. This<br />paper presents a review of current applications of optical data in the visible and near infrared spectral regions, with<br />particular emphasis to the experiences developed by the author within AQUATER and other research projects<br />project. ER -