{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:18.698456", "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": "2015-Jun-18_to_2015-Jun-22_351.0_41.0"}, "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": 2015060002376}, "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 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 22 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 82850.43780399652}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "N.Atlantic-Ocean"]}, "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": ["North Atlantic Ocean"]}, "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": 41.0}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 38.53], [-10.68, 38.68], [-10.65, 38.75], [-10.68, 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[-11.25, 40.5], [-11.03, 41.03], [-10.68, 41.18], [-10.53, 41.53], [-10.12, 41.7], [-10.25, 42.0], [-10.15, 42.25], [-10.25, 42.5], [-10.03, 43.03], [-9.5, 43.25], [-9.25, 43.15], [-9.0, 43.25], [-8.47, 43.03], [-8.32, 42.68], [-7.97, 42.53], [-7.75, 42.0], [-7.85, 41.75], [-7.75, 41.5], [-7.85, 41.25], [-7.75, 41.0], [-7.85, 40.75], [-7.75, 40.5], [-7.85, 40.25], [-7.75, 40.0], [-7.97, 39.47], [-8.32, 39.32], [-8.47, 38.97], [-8.82, 38.82], [-8.85, 38.75], [-8.75, 38.5], [-8.85, 38.25], [-8.75, 38.0], [-8.85, 37.75], [-8.75, 37.5], [-8.97, 36.97], [-9.5, 36.75], [-9.75, 36.85], [-10.0, 36.75], [-10.25, 36.85], [-10.5, 36.75], [-11.03, 36.97], [-11.25, 37.5], [-11.15, 37.75], [-11.25, 38.0], [-11.03, 38.53]]]]}, "2015-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.15, 40.25], [-11.25, 40.5], [-11.03, 41.03], [-10.68, 41.18], [-10.53, 41.53], [-10.12, 41.7], [-10.25, 42.0], [-10.15, 42.25], [-10.25, 42.5], [-10.03, 43.03], [-9.5, 43.25], [-9.25, 43.15], 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2.812356867194616}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.076843564874707, 21.116348864208703, 21.403915906318048, 21.229609269317734, 18.546033630468912]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.62619141210837, 26.86853480844104, 28.260481661203926, 25.944264239446227, 18.546033630468912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0934010711530076, 2.886735652729273, 3.1532240901297426, 3.026580651780903, 1.4780633108732673]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.452978407057344, 6.9044743550832095, 8.321413429681797, 6.708428706006032, 1.4780633108732673]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.734020039479306, 1.9151810557327598, 2.1129243257819397, 2.1233057621119342, 1.3998941301457626]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2676218081270405, 2.698144149548302, 3.355247053256475, 3.244624021522312, 1.3998941301457626]}}