{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:52.879241", "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": "2025-Sep-03_to_2025-Sep-06_261.0_26.5"}, "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": 2025090001201}, "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": "September 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2025"}, "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": 88127.37190529618}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 26.5}, "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": 261.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 258.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-97.75, 26.0], [-97.97, 25.47], [-98.32, 25.32], [-98.47, 24.97], [-99.0, 24.75], [-99.53, 24.97], [-99.68, 25.32], [-100.0, 25.46], [-100.5, 25.25], [-101.03, 25.47], [-101.25, 26.0], [-101.15, 26.25], [-101.18, 26.32], [-101.25, 26.35], [-101.32, 26.32], [-101.47, 25.97], [-102.0, 25.75], [-102.53, 25.97], [-102.75, 26.5], [-102.65, 26.75], [-102.75, 27.0], [-102.53, 27.53], [-102.18, 27.68], [-102.03, 28.03], [-101.5, 28.25], [-101.25, 28.15], [-101.18, 28.18], [-101.03, 28.53], [-100.5, 28.75], [-100.25, 28.65], [-100.0, 28.75], [-99.75, 28.65], [-99.5, 28.75], [-99.25, 28.65], [-99.0, 28.75], [-98.75, 28.65], [-98.5, 28.75], [-97.97, 28.53], [-97.75, 28.0], [-97.85, 27.75], [-97.82, 27.68], [-97.47, 27.53], [-97.25, 27.0], [-97.47, 26.47], [-97.82, 26.32], [-97.85, 26.25], [-97.75, 26.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.0, 25.75], [-99.52999999999997, 25.97], [-99.75, 26.5], [-99.52999999999997, 27.03], [-99.0, 27.25], [-98.75, 27.15], [-98.5, 27.25], [-97.97000000000003, 27.03], [-97.75, 26.5], [-97.97000000000003, 25.97], [-98.5, 25.75], [-98.75, 25.85], [-99.0, 25.75]]]]}, "2025-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.75, 27.0], [-102.52999999999997, 27.53], [-102.18, 27.68], [-102.02999999999997, 28.03], [-101.5, 28.25], [-101.25, 28.15], [-101.18, 28.18], [-101.02999999999997, 28.53], [-100.5, 28.75], [-100.25, 28.65], [-100.0, 28.75], [-99.75, 28.65], [-99.5, 28.75], [-99.25, 28.65], [-99.0, 28.75], [-98.75, 28.65], [-98.5, 28.75], [-97.97000000000003, 28.53], [-97.75, 28.0], [-97.85000000000002, 27.75], [-97.82, 27.68], [-97.47000000000003, 27.53], [-97.25, 27.0], [-97.47000000000003, 26.47], [-97.82, 26.32], [-97.85000000000002, 26.25], [-97.75, 26.0], [-97.97000000000003, 25.47], [-98.32, 25.32], [-98.47000000000003, 24.97], [-99.0, 24.75], [-99.52999999999997, 24.97], [-99.68, 25.32], [-100.0, 25.46], [-100.5, 25.25], [-101.02999999999997, 25.47], [-101.25, 26.0], [-101.14999999999998, 26.25], [-101.18, 26.32], [-101.25, 26.35], [-101.32, 26.32], [-101.47000000000003, 25.97], [-102.0, 25.75], [-102.52999999999997, 25.97], [-102.75, 26.5], [-102.64999999999998, 26.75], [-102.75, 27.0]]]]}, "2025-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.75, 27.0], [-102.52999999999997, 27.53], [-102.18, 27.68], [-102.02999999999997, 28.03], [-101.5, 28.25], [-101.25, 28.15], [-101.18, 28.18], [-101.02999999999997, 28.53], [-100.5, 28.75], [-100.25, 28.65], [-100.0, 28.75], [-99.75, 28.65], [-99.5, 28.75], [-99.25, 28.65], [-99.0, 28.75], [-98.75, 28.65], [-98.5, 28.75], [-97.97000000000003, 28.53], [-97.75, 28.0], [-97.85000000000002, 27.75], [-97.82, 27.68], [-97.47000000000003, 27.53], [-97.25, 27.0], [-97.47000000000003, 26.47], [-97.82, 26.32], [-97.85000000000002, 26.25], [-97.75, 26.0], [-97.97000000000003, 25.47], [-98.32, 25.32], [-98.47000000000003, 24.97], [-99.0, 24.75], [-99.52999999999997, 24.97], [-99.68, 25.32], [-100.0, 25.46], [-100.5, 25.25], [-101.02999999999997, 25.47], [-101.25, 26.0], [-101.14999999999998, 26.25], [-101.18, 26.32], [-101.25, 26.35], [-101.32, 26.32], [-101.47000000000003, 25.97], [-102.0, 25.75], [-102.52999999999997, 25.97], [-102.75, 26.5], [-102.64999999999998, 26.75], [-102.75, 27.0]]]]}, "2025-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.75, 27.0], [-102.52999999999997, 27.53], [-102.18, 27.68], [-102.02999999999997, 28.03], [-101.5, 28.25], [-101.25, 28.15], [-101.18, 28.18], [-101.02999999999997, 28.53], [-100.5, 28.75], [-100.25, 28.65], [-100.0, 28.75], [-99.75, 28.65], [-99.5, 28.75], [-99.25, 28.65], [-99.0, 28.75], [-98.75, 28.65], [-98.5, 28.75], [-97.97000000000003, 28.53], [-97.75, 28.0], [-97.85000000000002, 27.75], [-97.82, 27.68], [-97.47000000000003, 27.53], [-97.25, 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31.765798187255882]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.34838511149093, 33.86370875040694, 34.4070869445801, 33.6938301086426]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3698103412458806, 3.381506492704137, 3.858267395530355, 3.356085369188918]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5737766053692894, 4.349759728001402, 5.635151697760307, 4.326470391352132]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3091053342421617, 1.5524647598009569, 1.7943951019195188, 1.6396007196375728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.341047181349265, 1.971593718597039, 2.2245899751502347, 1.9160445814007434]}}