{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:43.733557", "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": "2012-Jun-03_to_2012-Jun-06_256.5_44.5"}, "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": 2012060001930}, "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 03 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2012"}, "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": 87651.20261967683}, "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", "W.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": 44.5}, "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": 256.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "256.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 259.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.68, 42.82], [-105.03, 42.97], [-105.25, 43.5], [-105.03, 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46.75], [-105.75, 46.65], [-105.5, 46.75], [-104.97, 46.53], [-104.82, 46.18], [-104.47, 46.03], [-104.3, 45.63], [-104.0, 45.75], [-103.47, 45.53], [-103.32, 45.18], [-102.97, 45.03], [-102.82, 44.68], [-102.47, 44.53], [-102.25, 44.0], [-102.46, 43.5], [-102.32, 43.18], [-101.97, 43.03], [-101.82, 42.68], [-101.47, 42.53], [-101.32, 42.18], [-100.97, 42.03], [-100.75, 41.5], [-100.85, 41.25], [-100.82, 41.18], [-100.47, 41.03], [-100.25, 40.5], [-100.47, 39.97], [-101.0, 39.75], [-101.25, 39.85], [-101.5, 39.75], [-102.03, 39.97], [-102.18, 40.32], [-102.53, 40.47], [-102.68, 40.82], [-102.75, 40.85], [-103.0, 40.75], [-103.53, 40.97], [-103.68, 41.32], [-104.0, 41.46], [-104.5, 41.25], [-105.03, 41.47], [-105.25, 42.0], [-105.03, 42.53], [-104.68, 42.68], [-104.65, 42.75], [-104.68, 42.82], [-105.03, 42.97], [-105.18, 43.32], [-105.53, 43.47], [-105.68, 43.82], [-105.75, 43.85], [-106.0, 43.75], [-106.25, 43.85], [-106.5, 43.75], [-107.03, 43.97], [-107.25, 44.5], [-107.15, 44.75], [-107.25, 45.0], [-107.03, 45.53]]]]}, "2012-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 45.53], [-106.68, 45.68], [-106.65, 45.75], [-106.75, 46.0], [-106.53, 46.53], [-106.0, 46.75], [-105.75, 46.65], [-105.5, 46.75], [-104.97, 46.53], [-104.82, 46.18], [-104.47, 46.03], [-104.3, 45.63], [-104.0, 45.75], [-103.47, 45.53], [-103.32, 45.18], [-102.97, 45.03], [-102.82, 44.68], [-102.47, 44.53], [-102.25, 44.0], [-102.46, 43.5], [-102.32, 43.18], [-101.97, 43.03], [-101.82, 42.68], [-101.47, 42.53], [-101.32, 42.18], [-100.97, 42.03], [-100.75, 41.5], [-100.85, 41.25], [-100.82, 41.18], [-100.47, 41.03], [-100.25, 40.5], [-100.47, 39.97], [-101.0, 39.75], [-101.25, 39.85], [-101.5, 39.75], [-102.03, 39.97], [-102.18, 40.32], [-102.53, 40.47], [-102.68, 40.82], [-102.75, 40.85], [-103.0, 40.75], [-103.53, 40.97], [-103.68, 41.32], [-104.0, 41.46], [-104.5, 41.25], [-105.03, 41.47], [-105.25, 42.0], [-105.03, 42.53], [-104.68, 42.68], [-104.65, 42.75], 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mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.843537562556308, 5.892513916646096, 8.800518501287172, 6.7328738588351555]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.393601088006449, 6.80964237300185, 11.338310728244608, 9.093622973078027]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.493665563544468, 1.4001175201280909, 1.9769964660891577, 1.4806004371397792]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.695303982632128, 1.610455019940987, 2.4854317933064327, 2.073330743103595]}}