A5084138892- Urban Heat Island Mitigation
- Meteorological Phenomena and Simulations
- Climate variability and models
- Climate change and permafrost
- Atmospheric aerosols and clouds
- Cryospheric studies and observations
- Aeolian processes and effects
- Building Energy and Comfort Optimization
- Ionosphere and magnetosphere dynamics
- Remote Sensing and Land Use
- Geophysics and Gravity Measurements
- Coastal and Marine Dynamics
- Solar Radiation and Photovoltaics
- Wind and Air Flow Studies
- Ocean Waves and Remote Sensing
- Atmospheric chemistry and aerosols
- GNSS positioning and interference
- Atmospheric and Environmental Gas Dynamics
- Plant Ecology and Soil Science
- Healthcare Systems and Challenges
- Oceanographic and Atmospheric Processes
- Atmospheric Ozone and Climate
- Light effects on plants
- Genetic and phenotypic traits in livestock
- Calibration and Measurement Techniques
Portuguese Sea and Atmosphere Institute
2015-2024
University of Lisbon
2009-2022
Instituto Dom Luiz
2019-2021
IdMind (Portugal)
2019-2021
Universidade Católica Portuguesa
2017
Iscte – Instituto Universitário de Lisboa
2011
Abstract A model evaluation approach is proposed in which weather and climate prediction models are analyzed along a Pacific Ocean cross section, from the stratocumulus regions off coast of California, across shallow convection dominated trade winds, to deep ITCZ—the Global Energy Water Cycle Experiment Cloud System Study/Working Group on Numerical Experimentation (GCSS/WGNE) Cross-Section Intercomparison (GPCI). The main goal GPCI evaluate help understand improve representation tropical...
The European Organization for the Exploitation of Meteorological Satellites’ (EUMETSAT) Meteosat satellites provide unique opportunity to compile a 30+ year land surface temperature (LST) climate data record. Since instrument on-board 2–7 is equipped with single thermal channel, single-channel LST retrieval algorithms are used ensure consistency across satellites. present study compares performance two algorithms: (1) A physical radiative transfer-based mono-window (PMW); and (2) statistical...
A new all-weather land surface temperature (LST) product derived at the Satellite Application Facility on Land Surface Analysis (LSA-SAF) is presented. It first LST based visible and infrared observations combining clear-sky retrieved from Spinning Enhanced Visible Infrared Imager Meteosat Second Generation (MSG/SEVIRI) (IR) measurements with estimated a energy balance (EB) model to fill gaps caused by clouds. The EB solves mostly using products LSA-SAF. compared in situ made 3 dedicated...
Land surface temperature (LST) is a key variable in surface-atmosphere energy and water exchanges. The main goals of this study are to (i) evaluate the LST European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim ERA5 reanalyses over Iberian Peninsula using Satellite Application Facility on Surface Analysis (LSA-SAF) product (ii) understand drivers errors reanalysis. Simulations with ECMWF land-surface model offline mode (uncoupled) were carried out compared reanalysis data....
Abstract. Earth observations were used to evaluate the representation of land surface temperature (LST) and vegetation coverage over Iberia in two state-of-the-art models (LSMs) – European Centre for Medium-Range Weather Forecasts (ECMWF) Carbon-Hydrology Tiled ECMWF Scheme Surface Exchanges Land (CHTESSEL) Météo-France Interaction between Soil Biosphere Atmosphere model (ISBA) within SURface EXternalisée modeling platform (SURFEX-ISBA) 2004–2015 period. The results showed that daily maximum...
The frequency and intensity of extreme hot events have increased worldwide, particularly over the past couple decades. Europe has been affected by unprecedented mega heatwaves, namely that struck Western in 2003 Eastern 2010. year 2018 was also reported as an unusually year, with record-breaking temperatures many parts during spring summer, associated severe unusual wildfires significant crop losses central northern Europe. We show ability Land Surface Temperature (LST), retrieved from...
The need for cross-comparison and validation of all-weather Land Surface Temperature (LST) products has arisen due to the release multiple such aimed at providing comprehensive monitoring capabilities. In this study, we focus on validating two well-established LST (i.e. MLST-AS TRIMS LST) against in-situ measurements obtained from four high-quality sites: Evora, Gobabeb, KIT-Forest, Lake Constance. For land sites, exhibits better accuracy, with RMSEs ranging 1.6 K 2.1 K, than LST, which...
[1] The new generation of remote sensors on board NASA's A-Train constellation offers the possibility observing atmospheric boundary layer in different regimes, with or without clouds. In this study we use data from Atmospheric InfraRed Sounder (AIRS) and Rain Cumulus over Ocean (RICO) campaign, to verify accuracy precision AIRS Version 5 Level 2 support product. This product has an improved vertical sampling that is necessary for estimation properties. Good agreement found between RICO...
Land surface temperature (LST) is a key variable in surface-atmosphere energy and water exchanges. The main goals of this study are to (i) evaluate the LST European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim ERA5 reanalyses over Iberian Peninsula using Satellite Application Facility on Surface Analysis (LSA-SAF) product (ii) understand drivers errors reanalysis. Simulations with ECMWF land-surface model offline mode (uncoupled) were carried out compared reanalysis data....
Abstract. Summer heatwaves are becoming increasingly dangerous over Europe, and their close monitoring is essential for human activities. Typically, they monitored using the 2 m temperature from meteorological weather stations or reanalysis datasets. In this study, 2022 extremely warm summer Europe analysed satellite land surface (LST), specifically LSA SAF (Land Surface Analysis Satellite Application Facility) all-sky LST product (available 2004 onwards). Since climate applications of still...
Abstract Southern Africa has been strongly affected by ongoing climate change in recent decades. Rainfall variability is modulated regional patterns of moisture advection and convergence the lower troposphere. Using reanalysis, ground satellite‐based rainfall products observations from 10 weather stations, we perform a synoptic climatological analysis focussing on atmospheric circulation, transport their relationship with anomalies over Angolan Namibian Plateau region. Results clearly show...
An all-weather land surface temperature (LST) product derived at the Satellite Application Facility on Land Surface Analysis (LSA-SAF) is presented. The based clear-sky LST retrieved from MSG/SEVIRI infrared (IR) measurements, complemented by estimated with a energy balance (EB) model to fill gaps caused clouds. EB solves mostly using products LSA-SAF. new compared in situ observations made 3 dedicated validation stations, and Microwave (MW) AMSR-E measurements. against in-situ indicates an...
The summer time cloud diurnal cycle over western Iberia is analysed here using a satellite climate data record of fractional cover based on 9 years Meteosat Second Generation observations which distributed by the EUMETSAT's Climate Monitoring Satellite Applications Facility. These were complemented with corresponding mean SYNOP reports six locations studied domain. It shown that main coastal mountain range separates regions are characterized two very different regimes: stratocumulus-topped...
Land surface temperature (LST) is routinely retrieved from remote sensing instruments using semi-empirical relationships between top of atmosphere (TOA) radiances and LST, ancillary data such as total column water vapor or emissivity. These algorithms are calibrated a set forward radiative transfer simulations that return the TOA given LST thermodynamic profiles. The done in order to cover wide range atmospheric conditions viewing geometries. This study analyzes calibration strategies while...
Algorithms for Land Surface Temperature (LST) retrieval from infrared measurements are usually sensitive to the amount of water vapor present in atmosphere. The Satellite Application Facilities on Climate Monitoring and Analysis (CM SAF LSA SAF) currently compiling a 25 year LST data record (CDR), which uses information ERA-Int reanalysis. However, its relatively coarse spatial resolution may lead systematic errors humidity profiles with implications LST, particularly over mountainous areas....
Abstract. The global-scale patterns and covariances of subtropical marine boundary layer (MBL) cloud fraction spatial variability with atmospheric thermodynamic dynamic fields remain poorly understood. We describe an approach that leverages coincident NASA A-train the Modern Era Retrospective-Analysis for Research Applications (MERRA) data to quantify relationships in MBL derived at native pixel grid resolution. A new method observing four oceanic regions capture transitions from...
Abstract The impact of a new approach to the evaluation surface gravity wave drag (GWD) is assessed. This uses linear theory, but incorporates effects wind profile shear and curvature, by means second‐order WKB approximation. While theory predicts possibility either enhancement or reduction, depending on profile, results obtained with ERA‐40 reanalysis data clearly indicate predominance local enhancement. However, global atmospheric axial GWD torque comes mostly from regions predominantly...
Land Surface Temperature (LST) is routinely retrieved from remote sensing instruments using semi-empirical relationships between top of atmosphere (TOA) radiances and LST, ancillary data such as total column water vapor or emissivity. These algorithms are calibrated a set forward radiative transfer simulations that return the TOA given LST thermodynamic profiles. The done in order to cover wide range surface atmospheric conditions viewing geometries. This work analyses calibration...
Land Surface Temperature (LST) is routinely retrieved from remote sensing instruments using semi-empirical relationships between top of atmosphere (TOA) radiances and LST, ancillary data such as total column water vapor or emissivity. These algorithms are calibrated a set forward radiative transfer simulations that return the TOA given LST thermodynamic profiles. The done in order to cover wide range surface atmospheric conditions viewing geometries. This work analyses calibration...
Abstract. Earth observations were used to evaluate the representation of Land Surface Temperature (LST) and vegetation coverage over Iberia in two state-of-the-art land surface models (LSMs) – European Centre for Medium Range Weather Forecasting (ECMWF) Carbon-Hydrology Tiled ECMWF Scheme Exchanges (CHTESSEL) Météo-France Interaction between Soil Biosphere Atmosphere model (ISBA) within SURface EXternalisée modelling platform (SURFEX-ISBA) 2004–2015 period. The results show that daily...
We predict and describe a new collective mode in rotating Bose–Einstein condensates, which is very similar to Rossby waves geophysics. In the regime of fast rotation, Coriolis force dominates dynamics acts as restoring for acoustic-drift along condensate. derive nonlinear equation that includes effects both zero-point pressure inhomogeneity gas. It shown such have negative phase speed, propagating opposite sense rotation. discuss different equilibrium configurations compare them those...