{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:48.052179", "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": "2026-May-30_to_2026-Jun-02_263.5_34.0"}, "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": 2026050002592}, "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": "May 30 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 2026"}, "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": 118065.83415614862}, "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": 34.0}, "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": 263.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "263.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 266.75}, "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": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.65, 35.25], [-97.75, 35.5], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.68, 36.18], [-96.53, 36.53], [-96.0, 36.75], [-95.47, 36.53], [-95.32, 36.18], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.35, 32.75], [-93.25, 32.5], [-93.35, 32.25], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.25, 30.85], [-94.5, 30.75], [-95.03, 30.97], [-95.18, 31.32], [-95.53, 31.47], [-95.75, 32.0], [-95.53, 32.53], [-95.18, 32.68], [-95.07, 32.93], [-95.5, 32.75], [-95.75, 32.85], [-96.0, 32.75], [-96.53, 32.97], [-96.68, 33.32], [-96.75, 33.35], [-96.82, 33.32], [-96.97, 32.97], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]], [[-94.68, 33.32], [-94.8, 33.38], [-94.93, 33.07], [-94.68, 33.18], [-94.65, 33.25], [-94.68, 33.32]]]]}, "2026-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.65, 35.25], [-97.75, 35.5], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.68, 36.18], [-96.53, 36.53], [-96.0, 36.75], [-95.47, 36.53], [-95.32, 36.18], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.35, 32.75], [-93.25, 32.5], [-93.35, 32.25], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.25, 30.85], [-94.5, 30.75], [-95.0, 30.96], [-95.5, 30.75], [-96.03, 30.97], [-96.25, 31.5], [-96.15, 31.75], [-96.25, 32.0], [-96.12, 32.3], [-96.53, 32.47], [-96.68, 32.82], [-97.0, 32.96], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]]]]}, "2026-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.65, 35.25], [-97.75, 35.5], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.68, 36.18], [-96.53, 36.53], [-96.0, 36.75], [-95.47, 36.53], [-95.32, 36.18], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.35, 32.75], [-93.25, 32.5], [-93.35, 32.25], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.25, 30.85], [-94.5, 30.75], [-95.0, 30.96], [-95.5, 30.75], [-96.03, 30.97], [-96.25, 31.5], [-96.15, 31.75], [-96.25, 32.0], [-96.12, 32.3], [-96.53, 32.47], [-96.68, 32.82], [-97.0, 32.96], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]]]]}, "2026-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.75, 34.0], [-97.53, 34.53], [-97.18, 34.68], [-97.03, 35.03], [-96.5, 35.25], [-96.25, 35.15], [-96.0, 35.25], [-95.75, 35.15], [-95.5, 35.25], [-95.25, 35.15], [-95.0, 35.25], [-94.75, 35.15], [-94.5, 35.25], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-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], [-96.03, 30.97], [-96.25, 31.5], [-96.15, 31.75], [-96.25, 32.0], [-96.12, 32.3], [-96.53, 32.47], [-96.68, 32.82], [-97.03, 32.97], [-97.18, 33.32], [-97.53, 33.47], [-97.75, 34.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.944971085217787}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9400979067755943}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.756390459109582, 28.369105054330134, 28.922585617286586, 28.159467163085935]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.8066396077474, 29.530568695068382, 30.07660827636721, 29.59876403808596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6029822004247616, 3.9671255283788693, 4.41467305430259, 3.543049313483191]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.201275900153462, 5.19084356019232, 5.944971085217787, 3.995422928798405]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3616871544660114, 1.5046024888593124, 1.6776871348969349, 1.4110653224852883]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4749008999713729, 1.6788013323032205, 1.9144652620177507, 1.5771307715369443]}}