{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:40.603278", "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-Feb-03_to_2026-Feb-05_314.0_68.5"}, "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": 2026020001090}, "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": "February 03 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2026"}, "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": 62717.130104929965}, "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": 68.5}, "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": 314.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "314.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 314.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 64.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, 66.25], [-48.75, 66.5], [-48.65, 66.75], [-48.75, 67.0], [-48.65, 67.25], [-48.75, 67.5], [-48.53, 68.03], [-48.18, 68.18], [-48.15, 68.25], [-48.25, 68.5], [-48.15, 68.75], [-48.25, 69.0], [-48.15, 69.25], [-48.25, 69.5], [-48.15, 69.75], [-48.25, 70.0], [-48.15, 70.25], [-48.25, 70.5], [-48.03, 71.03], [-47.68, 71.18], [-47.53, 71.53], [-47.0, 71.75], [-46.47, 71.53], [-46.32, 71.18], [-45.97, 71.03], [-45.75, 70.5], [-45.96, 70.0], [-45.82, 69.68], [-45.47, 69.53], [-45.25, 69.0], [-45.35, 68.75], [-45.32, 68.68], [-44.97, 68.53], [-44.75, 68.0], [-44.85, 67.75], [-44.75, 67.5], [-44.85, 67.25], [-44.75, 67.0], [-44.97, 66.47], [-45.32, 66.32], [-45.35, 66.25], [-45.25, 66.0], [-45.47, 65.47], [-45.82, 65.32], [-45.85, 65.25], [-45.75, 65.0], [-45.85, 64.75], [-45.75, 64.5], [-45.97, 63.97], [-46.5, 63.75], [-46.75, 63.85], [-47.0, 63.75], [-47.53, 63.97], [-47.68, 64.32], [-48.03, 64.47], [-48.18, 64.82], [-48.53, 64.97], [-48.75, 65.5], [-48.65, 65.75], [-48.75, 66.0], [-48.65, 66.25]]]]}, "2026-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, 66.25], [-48.75, 66.5], [-48.65, 66.75], [-48.75, 67.0], [-48.65, 67.25], [-48.75, 67.5], [-48.53, 68.03], [-48.18, 68.18], [-48.15, 68.25], [-48.25, 68.5], [-48.15, 68.75], [-48.25, 69.0], [-48.15, 69.25], [-48.25, 69.5], [-48.15, 69.75], [-48.25, 70.0], [-48.15, 70.25], [-48.25, 70.5], [-48.03, 71.03], [-47.68, 71.18], [-47.53, 71.53], [-47.0, 71.75], [-46.47, 71.53], [-46.32, 71.18], [-45.97, 71.03], [-45.75, 70.5], [-45.96, 70.0], [-45.82, 69.68], [-45.47, 69.53], [-45.25, 69.0], [-45.35, 68.75], [-45.32, 68.68], [-44.97, 68.53], [-44.75, 68.0], [-44.85, 67.75], [-44.75, 67.5], [-44.85, 67.25], [-44.75, 67.0], [-44.97, 66.47], [-45.32, 66.32], [-45.35, 66.25], [-45.25, 66.0], [-45.47, 65.47], [-45.82, 65.32], [-45.85, 65.25], [-45.75, 65.0], [-45.85, 64.75], [-45.75, 64.5], [-45.97, 63.97], [-46.5, 63.75], [-46.75, 63.85], [-47.0, 63.75], [-47.53, 63.97], [-47.68, 64.32], [-48.03, 64.47], [-48.18, 64.82], [-48.53, 64.97], [-48.75, 65.5], [-48.65, 65.75], [-48.75, 66.0], [-48.65, 66.25]]]]}, "2026-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, 66.25], [-48.75, 66.5], [-48.65, 66.75], [-48.75, 67.0], [-48.65, 67.25], [-48.75, 67.5], [-48.53, 68.03], [-48.18, 68.18], [-48.15, 68.25], [-48.25, 68.5], [-48.15, 68.75], [-48.25, 69.0], [-48.15, 69.25], [-48.25, 69.5], [-48.15, 69.75], [-48.25, 70.0], [-48.15, 70.25], [-48.25, 70.5], [-48.03, 71.03], [-47.68, 71.18], [-47.53, 71.53], [-47.0, 71.75], [-46.47, 71.53], [-46.32, 71.18], [-45.97, 71.03], [-45.75, 70.5], [-45.96, 70.0], [-45.82, 69.68], [-45.47, 69.53], [-45.25, 69.0], [-45.35, 68.75], [-45.32, 68.68], [-44.97, 68.53], [-44.75, 68.0], [-44.85, 67.75], [-44.75, 67.5], [-44.85, 67.25], [-44.75, 67.0], [-44.97, 66.47], [-45.32, 66.32], [-45.35, 66.25], [-45.25, 66.0], [-45.47, 65.47], [-45.82, 65.32], [-45.85, 65.25], [-45.75, 65.0], [-45.85, 64.75], [-45.75, 64.5], [-45.97, 63.97], [-46.5, 63.75], [-46.75, 63.85], [-47.0, 63.75], [-47.53, 63.97], [-47.68, 64.32], [-48.03, 64.47], [-48.18, 64.82], [-48.53, 64.97], [-48.75, 65.5], [-48.65, 65.75], [-48.75, 66.0], [-48.65, 66.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 15.112187051784929}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 10.960803778706818}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.484121812064643, -10.490726132662758, -13.490104073098564]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-9.964798990885413, -7.042943064371741, -9.672076924641885]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.503112948390399, 12.666542378676777, 9.71275600905328]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.133984836376271, 15.112187051784929, 10.777023273738536]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4462225796060375, 1.7258255388477994, 1.3314569460581263]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6537504486679229, 2.05632412907765, 1.4432370943566806]}}