{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:05.761374", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2024-Jun-18_to_2024-Jun-20_355.0_40.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2024060000462}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 18 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 20 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 54073.14924126545}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Portugal", "Spain"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 40.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 355.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.15, 40.25], [-8.25, 40.5], [-8.03, 41.03], [-7.68, 41.18], [-7.65, 41.25], [-7.75, 41.5], [-7.53, 42.03], [-7.18, 42.18], [-7.03, 42.53], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.47, 42.53], [-5.25, 42.0], [-5.35, 41.75], [-5.25, 41.5], [-5.35, 41.25], [-5.25, 41.0], [-5.35, 40.75], [-5.32, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.47, 40.53], [-4.25, 40.0], [-4.47, 39.47], [-4.82, 39.32], [-4.97, 38.97], [-5.5, 38.75], [-5.75, 38.85], [-6.0, 38.75], [-6.25, 38.85], [-6.5, 38.75], [-6.75, 38.85], [-7.0, 38.75], [-7.25, 38.85], [-7.5, 38.75], [-8.03, 38.97], [-8.25, 39.5], [-8.15, 39.75], [-8.25, 40.0], [-8.15, 40.25]]]]}, "2024-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.15, 40.25], [-8.25, 40.5], [-8.03, 41.03], [-7.68, 41.18], [-7.65, 41.25], [-7.75, 41.5], [-7.53, 42.03], [-7.18, 42.18], [-7.03, 42.53], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.47, 42.53], [-5.25, 42.0], [-5.35, 41.75], [-5.25, 41.5], [-5.35, 41.25], [-5.25, 41.0], [-5.35, 40.75], [-5.32, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.47, 40.53], [-4.25, 40.0], [-4.47, 39.47], [-4.82, 39.32], [-4.97, 38.97], [-5.5, 38.75], [-5.75, 38.85], [-6.0, 38.75], [-6.25, 38.85], [-6.5, 38.75], [-6.75, 38.85], [-7.0, 38.75], [-7.25, 38.85], [-7.5, 38.75], [-8.03, 38.97], [-8.25, 39.5], [-8.15, 39.75], [-8.25, 40.0], [-8.15, 40.25]]]]}, "2024-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.15, 40.25], [-8.25, 40.5], [-8.03, 41.03], [-7.68, 41.18], [-7.65, 41.25], [-7.75, 41.5], [-7.53, 42.03], [-7.18, 42.18], [-7.03, 42.53], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.47, 42.53], [-5.25, 42.0], [-5.35, 41.75], [-5.25, 41.5], [-5.35, 41.25], [-5.25, 41.0], [-5.35, 40.75], [-5.32, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.47, 40.53], [-4.25, 40.0], [-4.47, 39.47], [-4.82, 39.32], [-4.97, 38.97], [-5.5, 38.75], [-5.75, 38.85], [-6.0, 38.75], [-6.25, 38.85], [-6.5, 38.75], [-6.75, 38.85], [-7.0, 38.75], [-7.25, 38.85], [-7.5, 38.75], [-8.03, 38.97], [-8.25, 39.5], [-8.15, 39.75], [-8.25, 40.0], [-8.15, 40.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.970273353566938}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.905511748198619}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.12038068631449, 14.907955317708115, 16.17724777360786]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.94709564841611, 11.95489214197363, 12.769625718734062]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.385990747279622, -6.7384801019663385, -5.5920643953498965]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.0286153519792265, -7.970273353566938, -7.278663139045534]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5411076623919118, -1.9569669439371586, -1.6427880009582387]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7968625639432179, -2.324737357226948, -2.139431266455077]}}