{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:38.277289", "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": "2014-Jun-20_to_2014-Jun-25_353.5_37.5"}, "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": 2014060000787}, "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 20 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 25 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 87448.81525678914}, "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": 37.5}, "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": 353.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 356.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.5, 38.25], [-5.97, 38.03], [-5.75, 37.5], [-5.97, 36.97], [-6.5, 36.75], [-7.03, 36.97], [-7.25, 37.5], [-7.03, 38.03], [-6.5, 38.25]]]]}, "2014-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 36.97], [-7.75, 37.5], [-7.53, 38.03], [-7.0, 38.25], [-6.75, 38.15], [-6.68, 38.18], [-6.53, 38.53], [-6.0, 38.75], [-5.75, 38.65], [-5.5, 38.75], [-5.25, 38.65], [-5.0, 38.75], [-4.75, 38.65], [-4.5, 38.75], [-4.25, 38.65], [-4.0, 38.75], [-3.47, 38.53], [-3.25, 38.0], [-3.47, 37.47], [-4.0, 37.25], [-4.25, 37.35], [-4.32, 37.32], [-4.35, 37.25], [-4.25, 37.0], [-4.47, 36.47], [-5.0, 36.25], [-5.25, 36.35], [-5.5, 36.25], [-6.03, 36.47], [-6.18, 36.82], [-6.25, 36.85], [-6.5, 36.75], [-6.75, 36.85], [-7.0, 36.75], [-7.53, 36.97]]]]}, "2014-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 38.5], [-9.03, 39.03], [-8.68, 39.18], [-8.53, 39.53], [-8.18, 39.68], [-8.03, 40.03], [-7.68, 40.18], [-7.53, 40.53], [-7.0, 40.75], [-6.47, 40.53], [-6.25, 40.0], [-6.35, 39.75], [-6.25, 39.5], [-6.35, 39.25], [-6.25, 39.0], [-6.35, 38.75], [-6.32, 38.68], [-6.25, 38.65], [-6.0, 38.75], [-5.75, 38.65], [-5.5, 38.75], [-5.25, 38.65], [-5.0, 38.75], [-4.75, 38.65], [-4.5, 38.75], [-4.25, 38.65], [-4.0, 38.75], [-3.47, 38.53], [-3.25, 38.0], [-3.47, 37.47], [-3.82, 37.32], [-3.97, 36.97], [-4.32, 36.82], [-4.47, 36.47], [-5.0, 36.25], [-5.25, 36.35], [-5.5, 36.25], [-5.75, 36.35], [-6.0, 36.25], [-6.53, 36.47], [-6.68, 36.82], [-6.75, 36.85], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.68, 37.82], [-9.03, 37.97], [-9.25, 38.5]]]]}, "2014-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.03, 39.53], [-8.5, 39.75], [-8.25, 39.65], [-8.18, 39.68], [-8.03, 40.03], [-7.68, 40.18], [-7.53, 40.53], [-7.0, 40.75], [-6.47, 40.53], [-6.25, 40.0], [-6.35, 39.75], [-6.32, 39.68], [-5.97, 39.53], [-5.82, 39.18], [-5.75, 39.15], [-5.5, 39.25], [-5.25, 39.15], [-5.0, 39.25], [-4.47, 39.03], [-4.32, 38.68], [-4.25, 38.65], [-4.0, 38.75], [-3.47, 38.53], [-3.25, 38.0], [-3.47, 37.47], [-3.82, 37.32], [-3.97, 36.97], [-4.32, 36.82], [-4.47, 36.47], [-5.0, 36.25], [-5.25, 36.35], [-5.5, 36.25], [-5.75, 36.35], [-6.0, 36.25], [-6.53, 36.47], [-6.68, 36.82], [-6.75, 36.85], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.68, 37.82], [-9.03, 37.97], [-9.25, 38.5], [-9.15, 38.75], [-9.25, 39.0], [-9.03, 39.53]]]]}, "2014-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.03, 39.53], [-8.5, 39.75], [-8.25, 39.65], [-8.18, 39.68], [-8.03, 40.03], [-7.68, 40.18], [-7.53, 40.53], [-7.0, 40.75], [-6.47, 40.53], [-6.25, 40.0], [-6.35, 39.75], [-6.32, 39.68], [-5.97, 39.53], [-5.82, 39.18], [-5.75, 39.15], [-5.5, 39.25], [-5.25, 39.15], [-5.0, 39.25], [-4.47, 39.03], [-4.32, 38.68], [-4.25, 38.65], [-4.0, 38.75], [-3.47, 38.53], [-3.25, 38.0], [-3.47, 37.47], [-3.82, 37.32], [-3.97, 36.97], [-4.32, 36.82], [-4.47, 36.47], [-5.0, 36.25], [-5.25, 36.35], [-5.5, 36.25], [-5.75, 36.35], [-6.0, 36.25], [-6.53, 36.47], [-6.68, 36.82], [-6.75, 36.85], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.68, 37.82], [-9.03, 37.97], [-9.25, 38.5], [-9.15, 38.75], [-9.25, 39.0], [-9.03, 39.53]]]]}, "2014-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 39.0], [-9.03, 39.53], [-8.5, 39.75], [-8.2, 39.62], [-8.03, 40.03], [-7.5, 40.25], [-7.25, 40.15], [-7.0, 40.25], [-6.47, 40.03], [-6.32, 39.68], [-5.97, 39.53], [-5.82, 39.18], [-5.75, 39.15], [-5.5, 39.25], [-5.25, 39.15], [-5.0, 39.25], [-4.47, 39.03], [-4.32, 38.68], [-4.25, 38.65], [-4.0, 38.75], [-3.47, 38.53], [-3.25, 38.0], [-3.47, 37.47], [-3.82, 37.32], [-3.97, 36.97], [-4.32, 36.82], [-4.47, 36.47], [-5.0, 36.25], [-5.25, 36.35], [-5.5, 36.25], [-5.75, 36.35], [-6.0, 36.25], [-6.53, 36.47], [-6.68, 36.82], [-7.03, 36.97], [-7.25, 37.5], [-7.15, 37.75], [-7.25, 38.0], [-7.15, 38.25], [-7.25, 38.5], [-7.47, 37.97], [-8.0, 37.75], [-8.53, 37.97], [-8.68, 38.32], [-9.03, 38.47], [-9.25, 39.0]], [[-7.15, 38.75], [-7.18, 38.82], [-7.25, 38.85], [-7.37, 38.8], [-7.25, 38.5], [-7.15, 38.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.7361355414369655}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.834322335946543}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.194635800485003, 21.354573040241462, 20.12769581055585, 19.283085240588377, 18.614846521185427, 20.659410425765202]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.194635800485003, 19.258324035355372, 18.176283726276438, 17.01089407972097, 17.04905306550404, 18.962690650675597]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.193981870491882, -4.2057163160575, -4.2519855693646775, -5.051302745724371, -5.717067301753959, -4.228391995968749]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.193981870491882, -4.912682817441578, -4.687625287115679, -6.139757888669408, -7.7361355414369655, -5.283154431371031]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.422277113603969, -1.454444023273634, -1.432516887013862, -1.7085223686468263, -1.95519874760826, -1.455228890036324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.422277113603969, -1.5497361735579835, -1.7155164981398883, -2.053466612123766, -2.6800669603954774, -1.8274325622940184]}}