User profiles for Isabel Pôças

Isabel Pôças

Centro de Investigação em Ciências Geo-Espaciais
Verified email at fc.up.pt
Cited by 1582

A review of strategies, methods and technologies to reduce non-beneficial consumptive water use on farms considering the FAO56 methods

N Jovanovic, LS Pereira, P Paredes, I Pôças… - Agricultural water …, 2020 - Elsevier
In the past few decades, research has developed a multitude of strategies, methods and
technologies to reduce consumptive water use on farms for adaptation to the increasing …

[HTML][HTML] Multi-sensor spectral synergies for crop stress detection and monitoring in the optical domain: A review

…, R Darvishzadeh, H Aasen, M Garcia, I Pôças… - Remote sensing of …, 2022 - Elsevier
Remote detection and monitoring of the vegetation responses to stress became relevant for
sustainable agriculture. Ongoing developments in optical remote sensing technologies have …

Remote sensing based indicators of changes in a mountain rural landscape of Northeast Portugal

I Pôças, M Cunha, LS Pereira - Applied Geography, 2011 - Elsevier
Landscape metrics were used to analyze landscape changes and related driving forces in a
mountain rural landscape of Northeast Portugal over three decades. This landscape has …

Evapotranspiration and crop coefficients for a super intensive olive orchard. An application of SIMDualKc and METRIC models using ground and satellite observations

TA Paço, I Pôças, M Cunha, JC Silvestre, FL Santos… - Journal of …, 2014 - Elsevier
The estimation of crop evapotranspiration (ET c ) from the reference evapotranspiration (ET
o ) and a standard crop coefficient (K c ) in olive orchards requires that the latter be adjusted …

Hyperspectral-based predictive modelling of grapevine water status in the Portuguese Douro wine region

I Pôças, J Gonçalves, PM Costa, I Gonçalves… - International journal of …, 2017 - Elsevier
In this study, hyperspectral reflectance (HySR) data derived from a handheld spectroradiometer
were used to assess the water status of three grapevine cultivars in two sub-regions of …

Estimation of actual crop coefficients using remotely sensed vegetation indices and soil water balance modelled data

I Pôças, TA Paço, P Paredes, M Cunha, LS Pereira - Remote Sensing, 2015 - mdpi.com
A new procedure is proposed for estimating actual basal crop coefficients from vegetation
indices (K cb VI ) considering a density coefficient (K d ) and a crop coefficient for bare soil. K d …

Predicting grapevine water status based on hyperspectral reflectance vegetation indices

I Pôças, A Rodrigues, S Gonçalves, PM Costa… - Remote sensing, 2015 - mdpi.com
Isabel Pôças contributed for the current study by collecting the reflectance data, the subsequent
processing of the data and the analysis of the results, and assuming the responsibility of …

[HTML][HTML] Evaluation of crop coefficient and evapotranspiration data for sugar beets from landsat surface reflectances using micrometeorological measurements and …

T Wang, FS Melton, I Pôças, LF Johnson, T Thao… - Agricultural Water …, 2021 - Elsevier
In California and other agricultural regions that are facing challenges with water scarcity,
accurate estimates of crop evapotranspiration (ET c ) can support agricultural entities in …

Toward a generalized predictive model of grapevine water status in Douro region from hyperspectral data

I Pôças, R Tosin, I Gonçalves, M Cunha - Agricultural and Forest …, 2020 - Elsevier
The predawn leaf water potential (ѱ pd ) is an eco-physiological indicator widely used for
assessing vines water status and thus supporting irrigation management in several wine …

Satellite-based evapotranspiration of a super-intensive olive orchard: Application of METRIC algorithms

I Pôças, TA Paço, M Cunha, JA Andrade… - Biosystems …, 2014 - Elsevier
Highlights • METRIC successfully estimated ET from remote sensing in a discontinuous
woody crop. • METRIC estimates required adjusting surface temperature to a three-source …