{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:40:18Z","timestamp":1760060418421,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2025,8,22]],"date-time":"2025-08-22T00:00:00Z","timestamp":1755820800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union-NextGenerationEU","award":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"],"award-info":[{"award-number":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"]}]},{"name":"FCT\/MCTES","award":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"],"award-info":[{"award-number":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia (FCT)","award":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"],"award-info":[{"award-number":["N0 BG-RRP-2.004-0005","UIDB\/50008\/2020-UIDP\/50008\/2020","UIDB\/04423\/2020","UIDP\/04423\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Water"],"abstract":"<jats:p>A methodology is proposed to predict the daily river discharge (RD) to estuaries from rivers draining in similar temperate zones. Multiple regression models are proposed to estimate RD using only available meteorological data. The models are based on monthly air temperature (T) and recent (PR) and non-recent (PNR) atmospheric precipitation (rainfall). They consist of the linear and nonlinear terms of T, PR, and PNR, without interaction terms between them. Four rivers located in the north and centre of Portugal (flowing to the Atlantic Ocean) are used in this study\u2014Vouga, Antu\u00e3, Neiva, and Mondego. The optimal period used to compute the recent precipitation history is between 4 and 7 days for Vouga, Antu\u00e3, and Mondego and is 11 days for Neiva. The recommended lag to compute the non-recent precipitation history is between 50 and 90 days. The optimisation of the lengths of recent and non-recent periods improved the model performance, compared with previously proposed models with interaction terms between the meteorological variables. The obtained models provide a clear interpretation of the impact that meteorology has on RD. All rivers showed similar responses, but the flows of bigger rivers (Vouga, Mondego) were more significantly affected by precipitation and temperature. The proposed models are useful for analysing biogeochemical processes in rivers and estuaries, as well as for assessing flood and drought risks in sensitive areas.<\/jats:p>","DOI":"10.3390\/w17172499","type":"journal-article","created":{"date-parts":[[2025,8,22]],"date-time":"2025-08-22T11:50:31Z","timestamp":1755863431000},"page":"2499","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prediction of Daily River Discharge to Estuaries Based on Meteorological Data"],"prefix":"10.3390","volume":"17","author":[{"given":"Teodor","family":"Stoichev","sequence":"first","affiliation":[{"name":"CIIMAR\u2014Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, s\/n, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6836-0331","authenticated-orcid":false,"given":"Cristina Marisa R.","family":"Almeida","sequence":"additional","affiliation":[{"name":"CIIMAR\u2014Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, s\/n, 4450-208 Matosinhos, Portugal"},{"name":"Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre 790, 4150-171 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4180-4721","authenticated-orcid":false,"given":"Tsonyo","family":"Slavov","sequence":"additional","affiliation":[{"name":"Department of Systems and Control, Technical University of Sofia, 1000 Sofia, Bulgaria"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6424-6590","authenticated-orcid":false,"given":"Petia","family":"Georgieva","sequence":"additional","affiliation":[{"name":"Institute of Electronics and Informatics Engineering of Aveiro (IEETA), University of Aveiro, 3800-193 Aveiro, Portugal"},{"name":"Instituto de Telecomunica\u00e7\u00f5es, 3800-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"17371","DOI":"10.1007\/s11356-018-1925-2","article-title":"Flux model to estimate the transport of mercury species in a contaminated lagoon (Ria de Aveiro, Portugal)","volume":"25","author":"Stoichev","year":"2018","journal-title":"Environ. 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