Ανάλυση βροχοπτώσεων στον ελληνικό χώρο με βάση δεδομένων eranalysis (ERA 5) = Analysis of rainfall in the Greek area based on reanalysis data (ERA 5).

Γεώργιος Αθανάσιος Σύρμας

Ανάλυση βροχοπτώσεων στον ελληνικό χώρο με βάση δεδομένων eranalysis (ERA 5) = Analysis of rainfall in the Greek area based on reanalysis data (ERA 5).

Γεώργιος Αθανάσιος Σύρμας

Περίληψη

Η βροχόπτωση αποτελεί μία από τις σημαντικότερες μετεωρολογικές και κλιματολογικές παραμέτρους, καθώς και η πιο απαιτητική εξαιτίας της χωρικής και χρονικής της μεταβλητότητας. Στόχος της εργασίας είναι, η ανάλυση δεδομένων από μετεωρολογικούς σταθμούς και η σύγκριση τους με δεδομένα reanalysis ERA5 για τον ελληνικό χώρο, με σκοπό να καθοριστεί η αξιοπιστία τους. Αρχικά υπολογίστηκαν οι μέσες ετήσιες, μηνιαίες και εποχιακές βροχοπτώσεις από τα δεδομένα των σταθμών. Παράλληλα, υπολογίστηκαν οι αντίστοιχες βροχοπτώσεις από τα δεδομένα reanalysis καθώς και οι διαφορές Grid-Station για όλους τους σταθμούς και τις αντίστοιχες βροχοπτώσεις (ετήσιες, μηνιαίες, εποχιακές) .Τέλος υπολογίστηκαν και συγκρίθηκαν οι τάσεις των βροχοπτώσεων.

Precipitation is one of the most important meteorological and climatic parameters, as well as the most demanding due to its spatial and temporal variability. The aim of the work is to analyze data from meteorological stations and to compare them with ERA5 reanalysis data for the Greek area, in order to determine their reliability. Firstly, average annual, monthly, and seasonal rainfalls were calculated from station data. In parallel, the corresponding rainfalls from the reanalysis data were calculated and analyzed as well as the Grid-Station differences (annual, monthly, seasonal). Finally, the rainfall trends were calculated and compared.

Πλήρες Κείμενο:

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Αναφορές

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Διαδικτυακές πηγές

https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5

https://atmosphere.copernicus.eu/reanalysis-qas.

https://en.wikipedia.org/wiki/ECMWF_re-analysis

http://climatlas.hnms.gr/sdi/

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