{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:00.171831", "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": "2010-Jan-19_to_2010-Jan-21_265.0_34.5"}, "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": 2010010002162}, "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": "January 19 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 21 2010"}, "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": "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": 179352.0616189186}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 34.5}, "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": 265.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "265.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 261.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.75, 32.5], [-98.53, 33.03], [-98.0, 33.25], [-97.75, 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30.85], [-96.0, 30.75], [-96.25, 30.85], [-96.5, 30.75], [-97.03, 30.97], [-97.18, 31.32], [-97.25, 31.35], [-97.5, 31.25], [-98.03, 31.47], [-98.18, 31.82], [-98.53, 31.97], [-98.75, 32.5]]]]}, "2010-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.75, 32.5], [-98.53, 33.03], [-98.0, 33.25], [-97.75, 33.15], [-97.62, 33.2], [-97.75, 33.5], [-97.65, 33.75], [-97.75, 34.0], [-97.65, 34.25], [-97.75, 34.5], [-97.53, 35.03], [-97.18, 35.18], [-97.03, 35.53], [-96.5, 35.75], [-96.25, 35.65], [-96.18, 35.68], [-96.03, 36.03], [-95.5, 36.25], [-95.25, 36.15], [-95.0, 36.25], [-94.75, 36.15], [-94.68, 36.18], [-94.53, 36.53], [-94.18, 36.68], [-94.03, 37.03], [-93.5, 37.25], [-92.97, 37.03], [-92.75, 36.5], [-92.85, 36.25], [-92.82, 36.18], [-92.7, 36.12], [-92.53, 36.53], [-92.0, 36.75], [-91.5, 36.54], [-91.0, 36.75], [-90.47, 36.53], [-90.25, 36.0], [-90.47, 35.47], [-90.82, 35.32], [-90.85, 35.25], [-90.75, 35.0], [-90.97, 34.47], [-91.5, 34.25], [-91.75, 34.35], [-92.0, 34.25], [-92.25, 34.35], [-92.32, 34.32], [-92.35, 34.25], [-92.25, 34.0], [-92.47, 33.47], [-93.0, 33.25], [-93.25, 33.35], [-93.32, 33.32], [-93.47, 32.97], [-93.82, 32.82], [-93.85, 32.75], [-93.75, 32.5], [-93.97, 31.97], [-94.32, 31.82], [-94.47, 31.47], [-94.82, 31.32], [-94.97, 30.97], [-95.5, 30.75], [-95.75, 30.85], [-96.0, 30.75], [-96.25, 30.85], [-96.5, 30.75], [-97.03, 30.97], [-97.18, 31.32], [-97.25, 31.35], [-97.5, 31.25], [-98.03, 31.47], [-98.18, 31.82], [-98.53, 31.97], [-98.75, 32.5]]]]}, "2010-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.75, 32.5], [-98.53, 33.03], [-98.0, 33.25], [-97.75, 33.15], [-97.62, 33.2], [-97.75, 33.5], [-97.65, 33.75], [-97.75, 34.0], [-97.65, 34.25], [-97.75, 34.5], [-97.53, 35.03], [-97.18, 35.18], [-97.03, 35.53], [-96.5, 35.75], [-96.25, 35.65], [-96.18, 35.68], [-96.03, 36.03], [-95.5, 36.25], [-95.25, 36.15], [-95.0, 36.25], [-94.75, 36.15], [-94.68, 36.18], [-94.53, 36.53], [-94.18, 36.68], 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11.936035260620315}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.845184918783357}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.08973772586603, 16.604367148668814, 14.014398374335258]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.636103612338047, 19.8056849149055, 16.835858786321467]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.043105662264747, 10.51411170570856, 7.978337388376752]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.447004073672531, 11.936035260620315, 11.479784120040676]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5289145751751998, 2.0514473170561125, 1.634549027973999]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.740609055160928, 2.302277208518622, 2.022877904251806]}}