Browsing by Issue Date, starting with "2024-10-15"
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- High-resolution observations of the ocean upper layer south of Cape St. Vincent, the western northern margin of the Gulf of CádizPublication . Rautenbach, Sarah A.; Mendes da Silva de Sousa, Carlos A; Carapuço, Mafalda; Relvas, PauloThis article presents an Eulerian physical and biogeochemical dataset from the Iberian Margin Cape St. Vincent Ocean observatory (IbMa-CSV), a facility of the European Multidisciplinary Seafloor and water column Observatory European Research Infrastructure Consortium (EMSO-ERIC), located 10 nautical miles south of Cape St. Vincent (Portugal), the southwest tip of the Iberian Peninsula and western limit of the northern margin of the Gulf of Cádiz (GoC). The observatory was installed on the shelf break, and the data time series spans 4 months for most of the variables. The upper 150 m were sampled intensively with a wave-powered vertical profiler at an average rate of 4.5 profiles per hour recording at 2 Hz when ascending at an approximate velocity of 0.2 m s−1 and 10 Hz when descending at a variable velocity. The vertical resolution was always higher than 0.2 m. Measured channels were conductivity, temperature, pressure, chlorophyll a, dissolved O2 concentration, and turbidity. Derived channels are sea pressure, depth, salinity, speed of sound, specific conductivity, dissolved O2 saturation, density anomaly, spiciness, and Brunt–Väisälä frequency. The acquired dataset includes the flow velocity and direction along the water column, taken from an upward-looking 300 kHz acoustic Doppler current profiler (ADCP) recorded every hour for 3 m depth bins extending the same depth range of the vertical profiler. A standard quality-control scheme was applied to the dataset. The dataset is preserved for multiple use and is accessible in the Sea Open Scientific Data Publication (SEANOE) repository via the following address: https://doi.org/10.17882/94769 (Rautenbach et al., 2022).
- High-resolution observations of the ocean upper layer south of Cape St. Vincent, the western northern margin of the Gulf of CádizPublication . Rautenbach, Sarah A.; Mendes da Silva de Sousa, Carlos A; Carapuço, Mafalda; Relvas, PauloThis article presents an Eulerian physical and biogeochemical dataset from the Iberian Margin Cape St. Vincent Ocean observatory (IbMa-CSV), a facility of the European Multidisciplinary Seafloor and water column Observatory European Research Infrastructure Consortium (EMSO-ERIC), located 10 nautical miles south of Cape St. Vincent (Portugal), the southwest tip of the Iberian Peninsula and western limit of the northern margin of the Gulf of C & aacute;diz (GoC). The observatory was installed on the shelf break, and the data time series spans 4 months for most of the variables. The upper 150 m were sampled intensively with a wave-powered vertical profiler at an average rate of 4.5 profiles per hour recording at 2 Hz when ascending at an approximate velocity of 0.2 ms(-1) and 10 Hz when descending at a variable velocity. The vertical resolution was always higher than 0.2 m. Measured channels were conductivity, temperature, pressure, chlorophyll a, dissolved O2 concentration, and turbidity. Derived channels are sea pressure, depth, salinity, speed of sound, specific conductivity, dissolved O2 saturation, density anomaly, spiciness, and Brunt-V & auml;is & auml;l & auml; frequency. The acquired dataset includes the flow velocity and direction along the water column, taken from an upward-looking 300 kHz acoustic Doppler current profiler (ADCP) recorded every hour for 3 m depth bins extending the same depth range of the vertical profiler. A standard quality-control scheme was applied to the dataset. The dataset is preserved for multiple use and is accessible in the Sea Open Scientific Data Publication (SEANOE) repository via the following address: 10.17882/94769 (Rautenbach et al., 2022).
- Harvesting rainwater - the relevance of hydrometeorological factors on rainwater quality and demonstration of the mitigation approach using green roofs and adsorption materialsPublication . Vargas, Julián Camilo Ríos; Jarosiewicz, Paweł; Chicharo, LuisWater pollution is one of the main challenges facing the world at present. As water is a vital resource, it is essential that it meets minimum quality standards in order to be used as drinking water, as well as for the ecosystem health. Rainwater harvesting has received attention in recent years due to its potential use as a water source, and important as climate-adaptation strategy. However, rainwater often contains pollutants that can impact negatively on human health and aquatic ecosystems. In response to these challenges, Nature-based Solutions (NbS) have emerged as innovative approach that mimic natural processes to enhance ecosystem services, such as water quality improvement. Examples of NbS for rainwater management include green roofs, bioswales, and raingardens, which help improving rainwater quality before it infiltrates or drains to water bodies, protecting rivers, reservoirs and lakes from contamination. To further enhance the effectiveness of NbS in rainwater treatment, the use of natural and innovative sorbent materials like dolomite and biochar have demonstrated good potential. In this way, the project aimed to assess the influence of hydrometeorological factors such as rainfall intensity (RI), antecedent dry period (ADP), and first flush on rainwater quality in the urban catchment (Łódź City, Poland) and to evaluate the efficiency of green roof technology in terms of rainwater retention and rainwater quality. Finally it aimed to identify and compare the potential enhancement of rainwater treatment through the use of innovative sorbent materials. The results demonstrated significant differences in rainwater quality between the two sites studied, particularly concerning pollutants like total phosphorous, indicating spatial impact on water quality. The research confirmed that the runoff from roofs produce elevated concentrations of pollutants including total suspended solids (TSS), total nitrogen (TN), total phosphorous (TP), and total organic carbon (TOC). A positive correlation was observed between ADP and pollutants concentration, while RI showed variable correlations across sites, suggesting that factors such as roof material, age, slope and roughness also could play a role in determining pollutant concentrations. Additionally, higher concentration of pollutants were found during the initial time of rainfall. In addition, the study identified that green roofs can significantly improve water retention and enhance rainwater quality by incorporating sorbent materials that mitigate the release of pollutants, such as phosphorus.