6 documents found, page 1 of 1

Sort by Issue Date

Pollen- and Weather-Based Machine Learning Models for Estimating Regional Olive...

Galveias, Ana \; Fraga, Helder; Costa, Ana Rodrigues; Antunes, Célia M.

The olive tree is one of the most common type of cultivation in the Mediterranean area, having high economic and social importance. The Alentejo region, Portugal, is an area with a high presence of olive groves, which in 2022 accounted for 201,474 hectares. The aim of this study was to assess the relationship between olive pollen, weather data, and olive tree production, between the years 2002 and 2022. Pollen ...


Pollen- and Weather-Based Machine Learning Models for Estimating Regional Olive...

Galveias, Ana; Fraga, Helder; Costa, Ana; Antunes, Célia M.

The olive tree is one of the most common type of cultivation in the Mediterranean area, having high economic and social importance. The Alentejo region, Portugal, is an area with a high presence of olive groves, which in 2022 accounted for 201,474 hectares. The aim of this study was to assess the relationship between olive pollen, weather data, and olive tree production, between the years 2002 and 2022. Pollen ...


Comparative Evaluation of Remote Sensing Platforms for Almond Yield Prediction

Guimarães, Nathalie; Fraga, Helder; Sousa, Joaquim J.; Pádua, Luís; Bento, Albino; Couto, Pedro

Almonds are becoming a central element in the gastronomic and food industry worldwide. Over the last few years, almond production has increased globally. Portugal has become the third most important producer in Europe, where this increasing trend is particularly evident. However, the susceptibility of almond trees to changing climatic conditions presents substantial risks, encompassing yield reduction and quali...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Tourism and climate in Lisbon. An assessment based on weather types

Machete, Raquel; Lopes, António; Gómez-Martín, Mª Belén; Fraga, Helder

Although climate is perceived as an essential part of tourism, influencingtouristic regional and seasonal distribution patterns, ideal climate conditions for tourism areoften assumed, rather than demonstrated. After reviewing the distinct tools that have beenapplied in order to evaluate climate potential for tourism, as well as tourists’ preferences,Besancenots’ weather-types method was chosen. This model was a...

Date: 2014   |   Origin: Revista Finisterra

Tourism and climate in Lisbon: an assessment based on weather types

Machete, Raquel; Lopes, António; Gómez-Martín, Mª Belén; Fraga, Helder

Although climate is perceived as an essential part of tourism, influencing touristic regional and seasonal distribution patterns, ideal climate conditions for tourism are often assumed, rather than demonstrated. After reviewing the distinct tools that have been applied in order to evaluate climate potential for tourism, as well as tourists’ preferences, Besancenots’ weather-types method was chosen. This model w...


Potential flight range of Snow Buntings Plectrophenax nivalis occurring in the ...

Bolton, Mark; Medeiros, Renata; Fraga, Helder

It has been known for many decades that Snow Buntings occur with some regularity in the Azores archipelago in winter, with flocks numbering up to 20 individuals on occasion. The majority of records are from the islands of Corvo and Faial. The origin and fate of these individuals is unknown and it is unclear whether the regular occurrence of such groups represents a wintering strategy, or rather, whether these b...


6 Results

Queried text

Refine Results

Author

















Date





Document Type


Funding



Access rights


Resource






Subject