{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:14.026123", "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": "2018-Jul-01_to_2018-Jul-04_260.5_31.0"}, "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": 2018070001525}, "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": "July 01 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 66836.88194977323}, "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": ["Mexico", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-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": 31.0}, "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": 260.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "260.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 258.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.97, 27.47], [-100.5, 27.25], [-101.03, 27.47], [-101.25, 28.0], [-101.03, 28.53], [-100.5, 28.75], [-99.97, 28.53], [-99.75, 28.0], [-99.97, 27.47]]], [[[-100.68, 30.68], [-100.65, 30.75], [-100.75, 31.0], [-100.53, 31.53], [-100.0, 31.75], [-99.75, 31.65], [-99.68, 31.68], [-99.65, 31.75], [-99.75, 32.0], [-99.53, 32.53], [-99.0, 32.75], [-98.75, 32.65], [-98.5, 32.75], [-98.25, 32.65], [-98.0, 32.75], [-97.47, 32.53], [-97.25, 32.0], [-97.47, 31.47], [-98.0, 31.25], [-98.25, 31.35], [-98.32, 31.32], [-98.35, 31.25], [-98.25, 31.0], [-98.47, 30.47], [-98.82, 30.32], [-98.97, 29.97], [-99.32, 29.82], [-99.47, 29.47], [-99.82, 29.32], [-99.97, 28.97], [-100.5, 28.75], [-101.03, 28.97], [-101.25, 29.5], [-101.15, 29.75], [-101.25, 30.0], [-101.03, 30.53], [-100.68, 30.68]]]]}, "2018-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 28.53], [-101.68, 28.68], [-101.65, 28.75], [-101.75, 29.0], [-101.65, 29.25], [-101.75, 29.5], [-101.65, 29.75], [-101.75, 30.0], [-101.53, 30.53], [-101.18, 30.68], [-101.15, 30.75], [-101.25, 31.0], [-101.03, 31.53], [-100.5, 31.75], [-100.25, 31.65], [-100.18, 31.68], [-100.03, 32.03], [-99.68, 32.18], [-99.53, 32.53], [-99.0, 32.75], [-98.75, 32.65], [-98.5, 32.75], [-98.25, 32.65], [-98.0, 32.75], [-97.47, 32.53], [-97.25, 32.0], [-97.47, 31.47], [-97.82, 31.32], [-97.97, 30.97], [-98.32, 30.82], [-98.47, 30.47], [-98.82, 30.32], [-98.97, 29.97], [-99.32, 29.82], [-99.47, 29.47], [-99.82, 29.32], [-99.96, 29.0], [-99.75, 28.5], [-99.85, 28.25], [-99.75, 28.0], [-99.97, 27.47], [-100.5, 27.25], [-100.75, 27.35], [-100.82, 27.32], [-100.97, 26.97], [-101.5, 26.75], [-102.03, 26.97], [-102.25, 27.5], [-102.15, 27.75], [-102.25, 28.0], [-102.03, 28.53]]]]}, "2018-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 28.53], [-101.68, 28.68], [-101.65, 28.75], [-101.75, 29.0], [-101.65, 29.25], [-101.75, 29.5], [-101.65, 29.75], [-101.75, 30.0], [-101.53, 30.53], [-101.18, 30.68], [-101.15, 30.75], [-101.25, 31.0], [-101.03, 31.53], [-100.5, 31.75], [-100.25, 31.65], [-100.18, 31.68], [-100.03, 32.03], [-99.68, 32.18], [-99.53, 32.53], [-99.0, 32.75], [-98.75, 32.65], [-98.5, 32.75], [-98.25, 32.65], [-98.0, 32.75], [-97.47, 32.53], [-97.25, 32.0], [-97.47, 31.47], [-97.82, 31.32], [-97.97, 30.97], [-98.32, 30.82], [-98.47, 30.47], [-98.82, 30.32], [-98.97, 29.97], [-99.32, 29.82], [-99.47, 29.47], [-99.82, 29.32], [-99.96, 29.0], [-99.75, 28.5], [-99.85, 28.25], [-99.75, 28.0], [-99.97, 27.47], [-100.5, 27.25], [-100.75, 27.35], [-100.82, 27.32], [-100.97, 26.97], [-101.5, 26.75], [-102.03, 26.97], [-102.25, 27.5], [-102.15, 27.75], [-102.25, 28.0], [-102.03, 28.53]]]]}, "2018-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 28.53], [-101.68, 28.68], [-101.65, 28.75], [-101.75, 29.0], [-101.65, 29.25], [-101.75, 29.5], [-101.65, 29.75], [-101.75, 30.0], [-101.53, 30.53], [-101.18, 30.68], [-101.15, 30.75], [-101.25, 31.0], [-101.03, 31.53], [-100.5, 31.75], [-100.25, 31.65], 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31.493141613711316, 31.601519440888126]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.26155442406713, 33.29557624788066, 33.40928733138452, 33.73744404274004]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.0331082544536403, 3.075195778526918, 3.181390161307959, 3.290363886606384]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.300264654801765, 3.517505125137177, 3.826324996108724, 3.9608679636805277]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3436282023679478, 1.3478643766810305, 1.4200662222404858, 1.4937702028278197]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4247705611533372, 1.5338598093829885, 1.796448276553084, 1.7767093413803132]}}