{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:07.503409", "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": "2018-Jun-25_to_2018-Jun-27_264.5_54.0"}, "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": 2018060002957}, "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": "June 25 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2018"}, "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": 83415.1188923634}, "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": ["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": 54.0}, "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": 264.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "264.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 268.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 55.0], [-97.15, 55.25], [-97.25, 55.5], [-97.03, 56.03], [-96.5, 56.25], [-96.25, 56.15], [-96.0, 56.25], [-95.75, 56.15], [-95.5, 56.25], [-95.25, 56.15], [-95.0, 56.25], [-94.47, 56.03], [-94.32, 55.68], [-94.25, 55.65], [-94.0, 55.75], [-93.47, 55.53], [-93.32, 55.18], [-93.25, 55.15], [-93.0, 55.25], [-92.75, 55.15], [-92.5, 55.25], [-92.25, 55.15], [-92.0, 55.25], [-91.47, 55.03], [-91.32, 54.68], [-90.97, 54.53], [-90.75, 54.0], [-90.97, 53.47], [-91.5, 53.25], [-91.75, 53.35], [-92.0, 53.25], [-92.25, 53.35], [-92.5, 53.25], [-92.75, 53.35], [-93.0, 53.25], [-93.25, 53.35], [-93.32, 53.32], [-93.35, 53.25], [-93.25, 53.0], [-93.35, 52.75], [-93.25, 52.5], [-93.47, 51.97], [-94.0, 51.75], [-94.25, 51.85], [-94.5, 51.75], [-94.75, 51.85], [-95.0, 51.75], [-95.25, 51.85], [-95.5, 51.75], [-96.03, 51.97], [-96.18, 52.32], [-96.53, 52.47], [-96.75, 53.0], [-96.65, 53.25], [-96.68, 53.32], [-96.75, 53.35], [-97.0, 53.25], [-97.53, 53.47], [-97.75, 54.0], [-97.53, 54.53], [-97.18, 54.68], [-97.15, 54.75], [-97.25, 55.0]]]]}, "2018-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 55.0], [-97.15, 55.25], [-97.25, 55.5], [-97.03, 56.03], [-96.5, 56.25], [-96.25, 56.15], [-96.0, 56.25], [-95.75, 56.15], [-95.5, 56.25], [-95.25, 56.15], [-95.0, 56.25], [-94.47, 56.03], [-94.32, 55.68], [-94.25, 55.65], [-94.0, 55.75], [-93.47, 55.53], [-93.32, 55.18], [-93.25, 55.15], [-93.0, 55.25], [-92.75, 55.15], [-92.5, 55.25], [-92.25, 55.15], [-92.0, 55.25], [-91.47, 55.03], [-91.32, 54.68], [-90.97, 54.53], [-90.75, 54.0], [-90.97, 53.47], [-91.5, 53.25], [-91.75, 53.35], [-92.0, 53.25], [-92.25, 53.35], [-92.5, 53.25], [-92.75, 53.35], [-93.0, 53.25], [-93.25, 53.35], [-93.32, 53.32], [-93.35, 53.25], [-93.25, 53.0], [-93.35, 52.75], [-93.25, 52.5], [-93.47, 51.97], [-94.0, 51.75], [-94.25, 51.85], [-94.5, 51.75], [-94.75, 51.85], [-95.0, 51.75], [-95.25, 51.85], [-95.5, 51.75], [-96.03, 51.97], [-96.18, 52.32], [-96.53, 52.47], [-96.75, 53.0], [-96.65, 53.25], [-96.68, 53.32], [-96.75, 53.35], [-97.0, 53.25], [-97.53, 53.47], [-97.75, 54.0], [-97.53, 54.53], [-97.18, 54.68], [-97.15, 54.75], [-97.25, 55.0]]]]}, "2018-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 55.0], [-97.15, 55.25], [-97.25, 55.5], [-97.03, 56.03], [-96.5, 56.25], [-96.25, 56.15], [-96.0, 56.25], [-95.75, 56.15], [-95.5, 56.25], [-95.25, 56.15], [-95.0, 56.25], [-94.47, 56.03], [-94.32, 55.68], [-94.25, 55.65], [-94.0, 55.75], [-93.47, 55.53], [-93.32, 55.18], [-93.25, 55.15], [-93.0, 55.25], [-92.75, 55.15], [-92.5, 55.25], [-92.25, 55.15], [-92.0, 55.25], [-91.47, 55.03], [-91.32, 54.68], [-90.97, 54.53], [-90.75, 54.0], [-90.97, 53.47], [-91.5, 53.25], [-91.75, 53.35], [-92.0, 53.25], [-92.25, 53.35], [-92.5, 53.25], [-92.75, 53.35], [-93.0, 53.25], [-93.25, 53.35], [-93.32, 53.32], [-93.35, 53.25], [-93.25, 53.0], [-93.35, 52.75], [-93.25, 52.5], [-93.47, 51.97], [-94.0, 51.75], [-94.25, 51.85], [-94.5, 51.75], [-94.75, 51.85], [-95.0, 51.75], [-95.25, 51.85], [-95.5, 51.75], [-96.03, 51.97], [-96.18, 52.32], [-96.53, 52.47], [-96.75, 53.0], [-96.65, 53.25], [-96.68, 53.32], [-96.75, 53.35], [-97.0, 53.25], [-97.53, 53.47], [-97.75, 54.0], [-97.53, 54.53], [-97.18, 54.68], [-97.15, 54.75], [-97.25, 55.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.350966073827237}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.051658453076279}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.355703219723694, 22.685664452110643, 20.92185378746734]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.69608937975113, 25.002881137713473, 22.429354063243522]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.753777250325041, 7.0809025928899585, 5.320295516013847]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.987137797961964, 8.350966073827237, 5.935520750961189]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.562500845214764, 1.8899172747526642, 1.3909955118260995]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8771248252839292, 2.191291168330869, 1.6952757249426174]}}