{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:57.056837", "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-Mar-16_to_2025-Mar-18_324.0_67.5"}, "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": 2025030001732}, "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": "March 16 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 18 2025"}, "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": 56798.07729029324}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "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": 67.5}, "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": 324.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "324.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 321.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.15, 67.25], [-39.25, 67.5], [-39.03, 68.03], [-38.68, 68.18], [-38.65, 68.25], [-38.75, 68.5], [-38.53, 69.03], [-38.18, 69.18], [-38.03, 69.53], [-37.5, 69.75], [-37.25, 69.65], [-37.0, 69.75], [-36.75, 69.65], [-36.5, 69.75], [-36.25, 69.65], [-36.0, 69.75], [-35.47, 69.53], [-35.32, 69.18], [-35.25, 69.15], [-35.0, 69.25], [-34.47, 69.03], [-34.25, 68.5], [-34.35, 68.25], [-34.32, 68.18], [-34.25, 68.15], [-34.0, 68.25], [-33.47, 68.03], [-33.25, 67.5], [-33.47, 66.97], [-33.82, 66.82], [-33.97, 66.47], [-34.32, 66.32], [-34.47, 65.97], [-35.0, 65.75], [-35.25, 65.85], [-35.32, 65.82], [-35.47, 65.47], [-36.0, 65.25], [-36.25, 65.35], [-36.5, 65.25], [-36.75, 65.35], [-37.0, 65.25], [-37.53, 65.47], [-37.68, 65.82], [-37.75, 65.85], [-38.0, 65.75], [-38.25, 65.85], [-38.5, 65.75], [-39.03, 65.97], [-39.25, 66.5], [-39.15, 66.75], [-39.25, 67.0], [-39.15, 67.25]]]]}, "2025-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.15, 67.25], [-39.25, 67.5], [-39.03, 68.03], [-38.68, 68.18], [-38.65, 68.25], [-38.75, 68.5], [-38.53, 69.03], [-38.18, 69.18], [-38.03, 69.53], [-37.5, 69.75], [-37.25, 69.65], [-37.0, 69.75], [-36.75, 69.65], [-36.5, 69.75], [-36.25, 69.65], [-36.0, 69.75], [-35.47, 69.53], [-35.32, 69.18], [-35.25, 69.15], [-35.0, 69.25], [-34.47, 69.03], [-34.25, 68.5], [-34.35, 68.25], [-34.32, 68.18], [-34.25, 68.15], [-34.0, 68.25], [-33.47, 68.03], [-33.25, 67.5], [-33.47, 66.97], [-33.82, 66.82], [-33.97, 66.47], [-34.32, 66.32], [-34.47, 65.97], [-35.0, 65.75], [-35.25, 65.85], [-35.32, 65.82], [-35.47, 65.47], [-36.0, 65.25], [-36.25, 65.35], [-36.5, 65.25], [-36.75, 65.35], [-37.0, 65.25], [-37.53, 65.47], [-37.68, 65.82], [-37.75, 65.85], [-38.0, 65.75], [-38.25, 65.85], [-38.5, 65.75], [-39.03, 65.97], [-39.25, 66.5], [-39.15, 66.75], [-39.25, 67.0], [-39.15, 67.25]]]]}, "2025-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.15, 67.25], [-39.25, 67.5], [-39.03, 68.03], [-38.68, 68.18], [-38.65, 68.25], [-38.75, 68.5], [-38.53, 69.03], [-38.18, 69.18], [-38.03, 69.53], [-37.5, 69.75], [-37.25, 69.65], [-37.0, 69.75], [-36.75, 69.65], [-36.5, 69.75], [-36.25, 69.65], [-36.0, 69.75], [-35.47, 69.53], [-35.32, 69.18], [-35.25, 69.15], [-35.0, 69.25], [-34.47, 69.03], [-34.25, 68.5], [-34.35, 68.25], [-34.32, 68.18], [-34.25, 68.15], [-34.0, 68.25], [-33.47, 68.03], [-33.25, 67.5], [-33.47, 66.97], [-33.82, 66.82], [-33.97, 66.47], [-34.32, 66.32], [-34.47, 65.97], [-35.0, 65.75], [-35.25, 65.85], [-35.32, 65.82], [-35.47, 65.47], [-36.0, 65.25], [-36.25, 65.35], [-36.5, 65.25], [-36.75, 65.35], [-37.0, 65.25], [-37.53, 65.47], [-37.68, 65.82], [-37.75, 65.85], [-38.0, 65.75], [-38.25, 65.85], [-38.5, 65.75], [-39.03, 65.97], [-39.25, 66.5], [-39.15, 66.75], [-39.25, 67.0], [-39.15, 67.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 15.85616217529568}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 10.317898955379015}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-11.818553445074201, -11.668479294247106, -12.963002718819496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-2.4616302490234148, 0.008337910970055873, -1.308231099446573]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.72418901439851, 10.806223476717816, 9.423284375020721]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [15.85616217529568, 13.345187997898677, 11.053877843298096]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8037861047640817, 1.853487043051974, 1.6093666523400207]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.322495693193667, 2.542999599103027, 1.9510551062306742]}}