{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:25.121662", "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": "2019-Mar-13_to_2019-Mar-15_282.0_53.5"}, "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": 2019030001817}, "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 13 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 15 2019"}, "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": 53025.49589355337}, "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": ["Hudson Bay"]}, "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": 53.5}, "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": 282.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.25, 52.0], [-81.03, 52.53], [-80.5, 52.75], [-80.25, 52.65], [-80.0, 52.75], [-79.75, 52.65], [-79.5, 52.75], [-79.25, 52.65], [-79.12, 52.7], [-79.25, 53.0], [-79.15, 53.25], [-79.25, 53.5], [-79.03, 54.03], [-78.5, 54.25], [-78.25, 54.15], [-78.0, 54.25], [-77.75, 54.15], [-77.5, 54.25], [-77.25, 54.15], [-77.0, 54.25], [-76.47, 54.03], [-76.25, 53.5], [-76.35, 53.25], [-76.25, 53.0], [-76.35, 52.75], [-76.25, 52.5], [-76.35, 52.25], [-76.25, 52.0], [-76.35, 51.75], [-76.25, 51.5], [-76.47, 50.97], [-76.82, 50.82], [-76.97, 50.47], [-77.5, 50.25], [-77.75, 50.35], [-78.0, 50.25], [-78.53, 50.47], [-78.68, 50.82], [-78.75, 50.85], [-79.0, 50.75], [-79.25, 50.85], [-79.5, 50.75], [-79.75, 50.85], [-80.0, 50.75], [-80.53, 50.97], [-80.68, 51.32], [-81.03, 51.47], [-81.25, 52.0]]]]}, "2019-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.25, 52.0], [-81.03, 52.53], [-80.5, 52.75], [-80.25, 52.65], [-80.0, 52.75], [-79.75, 52.65], [-79.5, 52.75], [-79.25, 52.65], [-79.12, 52.7], [-79.25, 53.0], [-79.15, 53.25], [-79.25, 53.5], [-79.03, 54.03], [-78.5, 54.25], [-78.25, 54.15], [-78.0, 54.25], [-77.75, 54.15], [-77.5, 54.25], [-77.25, 54.15], [-77.0, 54.25], [-76.47, 54.03], [-76.25, 53.5], [-76.35, 53.25], [-76.25, 53.0], [-76.35, 52.75], [-76.25, 52.5], [-76.35, 52.25], [-76.25, 52.0], [-76.35, 51.75], [-76.25, 51.5], [-76.47, 50.97], [-76.82, 50.82], [-76.97, 50.47], [-77.5, 50.25], [-77.75, 50.35], [-78.0, 50.25], [-78.53, 50.47], [-78.68, 50.82], [-78.75, 50.85], [-79.0, 50.75], [-79.25, 50.85], [-79.5, 50.75], [-79.75, 50.85], [-80.0, 50.75], [-80.53, 50.97], [-80.68, 51.32], [-81.03, 51.47], [-81.25, 52.0]]]]}, "2019-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.25, 52.0], [-81.03, 52.53], [-80.5, 52.75], [-80.25, 52.65], [-80.0, 52.75], [-79.75, 52.65], [-79.5, 52.75], [-79.25, 52.65], [-79.12, 52.7], [-79.25, 53.0], [-79.15, 53.25], [-79.25, 53.5], [-79.03, 54.03], [-78.5, 54.25], [-78.25, 54.15], [-78.0, 54.25], [-77.75, 54.15], [-77.5, 54.25], [-77.25, 54.15], [-77.0, 54.25], [-76.47, 54.03], [-76.25, 53.5], [-76.35, 53.25], [-76.25, 53.0], [-76.35, 52.75], [-76.25, 52.5], [-76.35, 52.25], [-76.25, 52.0], [-76.35, 51.75], [-76.25, 51.5], [-76.47, 50.97], [-76.82, 50.82], [-76.97, 50.47], [-77.5, 50.25], [-77.75, 50.35], [-78.0, 50.25], [-78.53, 50.47], [-78.68, 50.82], [-78.75, 50.85], [-79.0, 50.75], [-79.25, 50.85], [-79.5, 50.75], [-79.75, 50.85], [-80.0, 50.75], [-80.53, 50.97], [-80.68, 51.32], [-81.03, 51.47], [-81.25, 52.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.370240881851203}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.742235224421691}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.6698121233528127, 1.832235819866412, 0.11774424148586604]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.7371297515709898, 3.0301958538584017, 1.3423822426441916]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.180175696638146, 14.547928434640086, 12.498601541986845]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.462479368054574, 16.370240881851203, 14.515785383763273]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5656691231358622, 2.030264308162978, 1.72054441874495]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.768578842827168, 2.201301902764461, 1.9026487233808078]}}