{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:42.397449", "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-Oct-17_to_2012-Oct-19_275.0_50.5"}, "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": 2012100002299}, "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": "October 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 19 2012"}, "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": 51553.45464267355}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America", "N.E.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": 50.5}, "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": 275.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "275.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 270.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 275.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.53, 51.53], [-89.0, 51.75], [-88.75, 51.65], [-88.5, 51.75], [-88.25, 51.65], [-88.0, 51.75], [-87.47, 51.53], [-87.32, 51.18], [-87.25, 51.15], [-87.0, 51.25], [-86.75, 51.15], [-86.5, 51.25], [-85.97, 51.03], [-85.82, 50.68], [-85.75, 50.65], [-85.68, 50.68], [-85.53, 51.03], [-85.18, 51.18], [-85.03, 51.53], [-84.5, 51.75], [-83.97, 51.53], [-83.75, 51.0], [-83.97, 50.47], [-84.32, 50.32], [-84.35, 50.25], [-84.25, 50.0], [-84.47, 49.47], [-84.82, 49.32], [-84.97, 48.97], [-85.32, 48.82], [-85.47, 48.47], [-86.0, 48.25], [-86.25, 48.35], [-86.5, 48.25], [-87.03, 48.47], [-87.18, 48.82], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-88.0, 48.75], [-88.53, 48.97], [-88.75, 49.5], [-88.65, 49.75], [-88.68, 49.82], [-88.75, 49.85], [-89.0, 49.75], [-89.53, 49.97], [-89.75, 50.5], [-89.65, 50.75], [-89.75, 51.0], [-89.53, 51.53]]]]}, "2012-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.53, 51.53], [-89.0, 51.75], [-88.75, 51.65], [-88.5, 51.75], [-88.25, 51.65], [-88.0, 51.75], [-87.47, 51.53], [-87.32, 51.18], [-87.25, 51.15], [-87.0, 51.25], [-86.75, 51.15], [-86.5, 51.25], [-85.97, 51.03], [-85.82, 50.68], [-85.75, 50.65], [-85.68, 50.68], [-85.53, 51.03], [-85.18, 51.18], [-85.03, 51.53], [-84.5, 51.75], [-83.97, 51.53], [-83.75, 51.0], [-83.97, 50.47], [-84.32, 50.32], [-84.35, 50.25], [-84.25, 50.0], [-84.47, 49.47], [-84.82, 49.32], [-84.97, 48.97], [-85.32, 48.82], [-85.47, 48.47], [-86.0, 48.25], [-86.25, 48.35], [-86.5, 48.25], [-87.03, 48.47], [-87.18, 48.82], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-88.0, 48.75], [-88.53, 48.97], [-88.75, 49.5], [-88.65, 49.75], [-88.68, 49.82], [-88.75, 49.85], [-89.0, 49.75], [-89.53, 49.97], [-89.75, 50.5], [-89.65, 50.75], [-89.75, 51.0], [-89.53, 51.53]]]]}, "2012-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.53, 51.53], [-89.0, 51.75], [-88.75, 51.65], [-88.5, 51.75], [-88.25, 51.65], [-88.0, 51.75], [-87.47, 51.53], [-87.32, 51.18], [-87.25, 51.15], [-87.0, 51.25], [-86.75, 51.15], [-86.5, 51.25], [-85.97, 51.03], [-85.82, 50.68], [-85.75, 50.65], [-85.68, 50.68], [-85.53, 51.03], [-85.18, 51.18], [-85.03, 51.53], [-84.5, 51.75], [-83.97, 51.53], [-83.75, 51.0], [-83.97, 50.47], [-84.32, 50.32], [-84.35, 50.25], [-84.25, 50.0], [-84.47, 49.47], [-84.82, 49.32], [-84.97, 48.97], [-85.32, 48.82], [-85.47, 48.47], [-86.0, 48.25], [-86.25, 48.35], [-86.5, 48.25], [-87.03, 48.47], [-87.18, 48.82], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-88.0, 48.75], [-88.53, 48.97], [-88.75, 49.5], [-88.65, 49.75], [-88.68, 49.82], [-88.75, 49.85], [-89.0, 49.75], [-89.53, 49.97], [-89.75, 50.5], [-89.65, 50.75], [-89.75, 51.0], [-89.53, 51.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.321410971017087}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.820593148792347}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.438934523055366, 10.337497274194902, 9.411889535049795]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.614350786218267, 12.471398207543416, 10.573172367738152]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.744776958933725, 7.815062869638587, 6.901939617804723]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.351037480799164, 9.321410971017087, 8.319683287713247]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5526803227903347, 2.022634084850554, 1.772005057201607]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.666661383901631, 2.287062274311288, 2.0537676136298133]}}