{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:30.296703", "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-Apr-04_to_2010-Apr-06_260.5_35.5"}, "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": 2010040001237}, "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": "April 04 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 06 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": 123700.86585773504}, "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": 35.5}, "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": 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": 257.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.15, 33.25], [-103.25, 33.5], [-103.03, 34.03], [-102.68, 34.18], [-102.65, 34.25], [-102.75, 34.5], [-102.53, 35.03], [-102.18, 35.18], [-102.15, 35.25], [-102.25, 35.5], [-102.03, 36.03], [-101.68, 36.18], [-101.53, 36.53], [-101.0, 36.75], [-100.75, 36.65], [-100.5, 36.75], [-100.25, 36.65], [-100.18, 36.68], [-100.03, 37.03], [-99.68, 37.18], [-99.53, 37.53], [-99.0, 37.75], [-98.75, 37.65], [-98.68, 37.68], [-98.53, 38.03], [-98.0, 38.25], [-97.75, 38.15], [-97.5, 38.25], [-96.97, 38.03], [-96.75, 37.5], [-96.85, 37.25], [-96.75, 37.0], [-96.85, 36.75], [-96.75, 36.5], [-96.97, 35.97], [-97.32, 35.82], [-97.47, 35.47], [-97.82, 35.32], [-97.97, 34.97], [-98.32, 34.82], [-98.35, 34.75], [-98.25, 34.5], [-98.47, 33.97], [-99.0, 33.75], [-99.25, 33.85], [-99.5, 33.75], [-99.75, 33.85], [-99.82, 33.82], [-99.97, 33.47], [-100.32, 33.32], [-100.47, 32.97], [-101.0, 32.75], [-101.25, 32.85], [-101.32, 32.82], [-101.47, 32.47], [-101.82, 32.32], [-101.97, 31.97], [-102.5, 31.75], [-103.03, 31.97], [-103.25, 32.5], [-103.15, 32.75], [-103.25, 33.0], [-103.15, 33.25]]]]}, "2010-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.15, 33.25], [-103.25, 33.5], [-103.03, 34.03], [-102.68, 34.18], [-102.65, 34.25], [-102.75, 34.5], [-102.53, 35.03], [-102.18, 35.18], [-102.15, 35.25], [-102.25, 35.5], [-102.03, 36.03], [-101.68, 36.18], [-101.53, 36.53], [-101.0, 36.75], [-100.75, 36.65], [-100.5, 36.75], [-100.25, 36.65], [-100.18, 36.68], [-100.03, 37.03], [-99.68, 37.18], [-99.53, 37.53], [-99.0, 37.75], [-98.75, 37.65], [-98.68, 37.68], [-98.53, 38.03], [-98.0, 38.25], [-97.75, 38.15], [-97.5, 38.25], [-96.97, 38.03], [-96.75, 37.5], [-96.85, 37.25], [-96.75, 37.0], [-96.85, 36.75], [-96.75, 36.5], [-96.97, 35.97], [-97.32, 35.82], [-97.47, 35.47], [-97.82, 35.32], [-97.97, 34.97], [-98.32, 34.82], [-98.35, 34.75], [-98.25, 34.5], [-98.47, 33.97], [-99.0, 33.75], [-99.25, 33.85], [-99.5, 33.75], [-99.75, 33.85], [-99.82, 33.82], [-99.97, 33.47], [-100.32, 33.32], [-100.47, 32.97], [-101.0, 32.75], [-101.25, 32.85], [-101.32, 32.82], [-101.47, 32.47], [-101.82, 32.32], [-101.97, 31.97], [-102.5, 31.75], [-103.03, 31.97], [-103.25, 32.5], [-103.15, 32.75], [-103.25, 33.0], [-103.15, 33.25]]]]}, "2010-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.15, 33.25], [-103.25, 33.5], [-103.03, 34.03], [-102.68, 34.18], [-102.65, 34.25], [-102.75, 34.5], [-102.53, 35.03], [-102.18, 35.18], [-102.15, 35.25], [-102.25, 35.5], [-102.03, 36.03], [-101.68, 36.18], [-101.53, 36.53], [-101.0, 36.75], [-100.75, 36.65], [-100.5, 36.75], [-100.25, 36.65], [-100.18, 36.68], [-100.03, 37.03], [-99.68, 37.18], [-99.53, 37.53], [-99.0, 37.75], [-98.75, 37.65], [-98.68, 37.68], [-98.53, 38.03], [-98.0, 38.25], [-97.75, 38.15], [-97.5, 38.25], [-96.97, 38.03], [-96.75, 37.5], [-96.85, 37.25], [-96.75, 37.0], [-96.85, 36.75], [-96.75, 36.5], [-96.97, 35.97], [-97.32, 35.82], [-97.47, 35.47], [-97.82, 35.32], [-97.97, 34.97], [-98.32, 34.82], [-98.35, 34.75], [-98.25, 34.5], [-98.47, 33.97], [-99.0, 33.75], [-99.25, 33.85], [-99.5, 33.75], [-99.75, 33.85], [-99.82, 33.82], [-99.97, 33.47], [-100.32, 33.32], [-100.47, 32.97], [-101.0, 32.75], [-101.25, 32.85], [-101.32, 32.82], [-101.47, 32.47], [-101.82, 32.32], [-101.97, 31.97], [-102.5, 31.75], [-103.03, 31.97], [-103.25, 32.5], [-103.15, 32.75], [-103.25, 33.0], [-103.15, 33.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.477796356084127}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.803832771359435}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.0111158976423, 22.766267278521696, 24.14176518255698]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.190826715403034, 25.34489056036341, 26.843414365890965]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.351747113679241, 8.923429227663748, 10.136321972735312]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.095030232653755, 10.534081400572063, 12.477796356084127]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4785273665188394, 1.7562324460604024, 1.981675068145259]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7084290499887764, 2.0881498605880444, 2.3574761677164124]}}