BEGIN:VCALENDAR VERSION:2.0 PRODID:-//pretalx//talks.staging.osgeo.org//foss4g-it-2023//speaker//LTSHMB BEGIN:VTIMEZONE TZID:GMT BEGIN:STANDARD DTSTART:20001029T030000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 END:STANDARD BEGIN:DAYLIGHT DTSTART:20000326T020000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:BST TZOFFSETFROM:+0000 TZOFFSETTO:+0100 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:pretalx-foss4g-it-2023-Y93Z9C@talks.staging.osgeo.org DTSTART;TZID=GMT:20230613T164500 DTEND;TZID=GMT:20230613T170000 DESCRIPTION:Surface Soil Moisture (SSM) is an essential climate variable th at links the atmospheric and surface processes\, controlling the exchange of water\, partitioning the available energy at the ground surface and bio chemical process. SSM plays also a crucial role in controlling hydro-geolo gical hazards\, like rainfall-triggered landslides.\nSSM can be monitored using various methods: ground-based measurements\, proximal methods\, or a ir-borne/ space-borne remote sensing. Traditional methods are mainly groun d-based measurements through contact sensors\; they provide accurate but s ingle-point measurements and require manual placement and intensive mainte nance\, especially in large-scale studies. Because SSM is a heterogeneous variable in terms of space and time\, data acquisition with traditional si ngle-point measurement methods is very limited\, especially at large scale .\nAdvances in satellite Remote Sensing (RS) bring the possibility of cont inuous land surface observation and characterization over time. In additio n to the geometric condition\, and optical and mineral properties of the e arth surface\, SSM is one of the influential factors that control the radi ation emitted from the earth’s surface. All parts of the electromagnetic (EM) spectrum that are normally used for earth observation can be used fo r quantitative SSM extraction. Considering the potential of penetration de pth of the EM wavelength\, RS methods can be classified into three categor ies: thermal\, microwave\, and optical RS. Thermal RS can be used individu ally or in combination of vegetation indices\, like the Crop Water Stress Index (CWSI). The acquisition of thermal data has high costs\, and\, in ad dition\, the differentiation between soil temperature and tree canopy temp erature is not easily achieved. Most globally available SSM products are d erived from microwave RS\, due to the ability of microwave radiation to pe netrate cloud cover\, but they are highly sensitive to surface roughness a nd have coarse spatial resolution\, making them inefficient for studies at small scale. Optical RS in the visible\, near-infrared\, and shortwave in frared ranges measures the reflected radiation from the earth surface\, wh ich can be related as a function of soil moisture to provide very high spa tial resolution data. \nIn the present study\, the potential of multispect ral satellite images acquired by Sentinel-2 (S-2) for SSM extraction is in vestigated. For this purpose\, a yearly dataset of hourly SSM measurements \, acquired at four different depths (-10cm\, -35cm\, -55cm\, -85cm) from a monitoring network in Mendatica (Liguria\, Italy) from 1st of July 2020 to 30th of June 2021\, was used to look for correlation with S-2 images. D ata acquired by the sensors were previously calibrated\, taking into accou nt the soil-specific characteristics of the areas (Bovolenta et al.\, 2020 )\, and the reliability of the dataset was verified. After performing the required preprocessing on satellite images\, the correlation coefficients between each band of S-2 images and ground-based measurements were calcula ted. The results represent the potential of each band or a combination of them to estimate SSM from RS through linear estimators. DTSTAMP:20260516T102545Z LOCATION:Sala Biblioteca @ PoliBa SUMMARY:Investigating the Correlation between Sentinel-2 Multispectral Imag es and Ground-Based Field Measurements of Soil Moisture (Case Study: Menda tica\, Liguria\, Italy) - Alessandro Iacopino\, Gachpaz Saba\, Giorgio Bon i\, Gabriele Moser\, Bianca Federici URL:https://talks.staging.osgeo.org/foss4g-it-2023/talk/Y93Z9C/ END:VEVENT BEGIN:VEVENT UID:pretalx-foss4g-it-2023-9KRU9Q@talks.staging.osgeo.org DTSTART;TZID=GMT:20230614T111500 DTEND;TZID=GMT:20230614T130000 DESCRIPTION:Intervengono:\nMattia Crespi - Dottorato Osservazione della Ter ra\nAndrea Taramelli - Copernicus Academy\nMaurizio Savoncelli - Consiglio Nazionale Geometri e Geometri Laureati (da remoto)\nValerio Baiocchi - Me mbro della Giunta AUTeC\nDomenico Sguerso - Società Italiana di Fotogramm etria e Topografia\nEnrico Borgogno Mondino - Associazione Italiana di Tel erilevamento\nPaolo Dabove - Associazione GFOSS.it APS\n\n\n\n\nI contenut i scientifico disciplinari riguardano l'acquisizione\, la restituzione\, l 'analisi e la gestione di dati di natura metrica o tematica relativi alla superficie della Terra\, o a porzioni di essa\, ivi compreso l'ambiente ur bano\, le infrastrutture e il patrimonio architettonico\, individuati dall a loro posizione spaziale e qualificati dalla precisione del rilevamento.\ n\nLe discipline comprese nel settore sono la geodesia (fisica\, geometric a e spaziale)\, la topografia\, la fotogrammetria (aerea e terrestre)\, la cartografia\, il telerilevamento (spaziale\, aereo e terrestre)\, la navi gazione (spaziale\, aerea\, marittima e terrestre) e i sistemi informativi territoriali.\n\nGli ambiti applicativi hanno per oggetto\, in particolar e\, lo studio dei sistemi di riferimento globali e locali\, gli strumenti e i metodi di rilevamento\, di controllo\, di monitoraggio del territorio\ , delle strutture e dei beni culturali\, il trattamento dei dati di misura \, la produzione e l'aggiornamento della cartografia\, dei DB topografici\ , il tracciamento di opere ed infrastrutture\, i sistemi mobili di rilevam ento i modelli numerici del terreno e delle superfici\, la gestione e la c ondivisione dell'informazione geografica multidimensionale e multi tempora le. DTSTAMP:20260516T102545Z LOCATION:Sala Videoconferenza @ PoliBa SUMMARY:Sessione AUTEC DIDATTICA E RICERCA NELL’OSSERVAZIONE DELLA TERRA - Bianca Federici URL:https://talks.staging.osgeo.org/foss4g-it-2023/talk/9KRU9Q/ END:VEVENT END:VCALENDAR