{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:10.368060", "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": "2016-Aug-22_to_2016-Aug-29_351.0_37.0"}, "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": 2016080002666}, "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": "August 22 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 54753.95512342121}, "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": 37.0}, "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": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 36.0], [-11.03, 36.53], [-10.68, 36.68], [-10.53, 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[-10.65, 35.25], [-10.68, 35.32], [-11.03, 35.47], [-11.25, 36.0]]]]}, "2016-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.15, 35.75], [-10.25, 36.0], [-10.15, 36.25], [-10.25, 36.5], [-10.03, 37.03], [-9.68, 37.18], [-9.54, 37.5], [-9.75, 38.0], [-9.53, 38.53], [-9.0, 38.75], [-8.47, 38.53], [-8.32, 38.18], [-7.97, 38.03], [-7.75, 37.5], [-7.85, 37.25], [-7.75, 37.0], [-7.85, 36.75], [-7.75, 36.5], [-7.97, 35.97], [-8.32, 35.82], [-8.35, 35.75], [-8.25, 35.5], [-8.35, 35.25], [-8.25, 35.0], [-8.47, 34.47], [-9.0, 34.25], [-9.25, 34.35], [-9.5, 34.25], [-10.03, 34.47], [-10.25, 35.0], [-10.15, 35.25], [-10.25, 35.5], [-10.15, 35.75]]]]}, "2016-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.15, 35.75], [-10.25, 36.0], [-10.15, 36.25], [-10.25, 36.5], [-10.03, 37.03], [-9.68, 37.18], [-9.53, 37.53], [-9.18, 37.68], [-9.03, 38.03], [-8.5, 38.25], [-7.97, 38.03], [-7.75, 37.5], [-7.85, 37.25], [-7.75, 37.0], [-7.85, 36.75], [-7.75, 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"coordinates": [[[[-8.5, 37.75], [-7.97, 37.53], [-7.75, 37.0], [-7.97, 36.47], [-8.5, 36.25], [-9.03, 36.47], [-9.25, 37.0], [-9.03, 37.53], [-8.5, 37.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.947638488667394}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0195374142003377}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.138117630367617, 23.418569840542432, 23.061402232657997, 22.949469925973972, 23.302587943781475, 22.580024707906716, 22.724085791559958, 23.52562443409937]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.56612536359478, 27.6428874194645, 26.738073039108656, 26.10990157781555, 26.139871896958823, 23.578976423137362, 24.09899761749523, 23.52562443409937]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.98321509561713, 2.2776228276600636, 1.9599287216402155, 1.8147273153252679, 2.015701682663656, 1.8028726378730426, 2.037637883762424, 2.189723100005949]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.7737121142594674, 4.947638488667394, 4.167795505207096, 3.637405750414416, 3.7045471716886595, 2.201325735517514, 2.730574225379371, 2.189723100005949]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9851665447942575, 2.27246043930906, 2.021972903723696, 1.7146042625325597, 1.872628039246572, 1.6501810465195923, 1.7781368238203779, 1.6836958410366902]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.112196656828894, 3.1742717190984804, 3.2538024965924577, 2.5480935966780764, 2.731864731450607, 1.7883024600461381, 2.0558238096492993, 1.6836958410366902]}}