{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:19.975973", "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-Aug-01_to_2019-Aug-04_252.0_47.0"}, "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": 2019080001214}, "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": "August 01 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 04 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 101197.14428349801}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America", "W.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": 47.0}, "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": 252.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "252.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 248.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "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": {"2019-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.25, 48.5], [-112.03, 49.03], [-111.62, 49.2], [-111.75, 49.5], [-111.53, 50.03], [-111.18, 50.18], [-111.03, 50.53], [-110.68, 50.68], [-110.65, 50.75], [-110.75, 51.0], [-110.53, 51.53], [-110.0, 51.75], [-109.75, 51.65], [-109.5, 51.75], [-108.97, 51.53], [-108.82, 51.18], [-108.75, 51.15], [-108.5, 51.25], [-108.25, 51.15], [-108.0, 51.25], [-107.75, 51.15], [-107.5, 51.25], [-106.97, 51.03], [-106.75, 50.5], [-106.85, 50.25], [-106.75, 50.0], [-106.85, 49.75], [-106.82, 49.68], [-106.47, 49.53], [-106.25, 49.0], [-106.47, 48.47], [-107.0, 48.25], [-107.25, 48.35], [-107.32, 48.32], [-107.35, 48.25], [-107.25, 48.0], [-107.46, 47.5], [-107.25, 47.0], [-107.47, 46.47], [-108.0, 46.25], [-108.53, 46.47], [-108.68, 46.82], [-108.75, 46.85], [-109.0, 46.75], [-109.25, 46.85], [-109.5, 46.75], [-110.03, 46.97], [-110.18, 47.32], [-110.25, 47.35], [-110.32, 47.32], [-110.47, 46.97], [-111.0, 46.75], [-111.53, 46.97], [-111.75, 47.5], [-111.65, 47.75], [-111.68, 47.82], [-112.03, 47.97], [-112.25, 48.5]]]]}, "2019-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.25, 48.5], [-112.03, 49.03], [-111.62, 49.2], [-111.75, 49.5], [-111.53, 50.03], [-111.18, 50.18], [-111.03, 50.53], [-110.68, 50.68], [-110.65, 50.75], [-110.75, 51.0], [-110.53, 51.53], [-110.0, 51.75], [-109.75, 51.65], [-109.5, 51.75], [-108.97, 51.53], [-108.82, 51.18], [-108.75, 51.15], [-108.5, 51.25], [-108.25, 51.15], [-108.0, 51.25], [-107.75, 51.15], [-107.5, 51.25], [-106.97, 51.03], [-106.75, 50.5], [-106.85, 50.25], [-106.75, 50.0], [-106.85, 49.75], [-106.82, 49.68], [-106.47, 49.53], [-106.25, 49.0], [-106.47, 48.47], [-107.0, 48.25], [-107.25, 48.35], [-107.32, 48.32], [-107.35, 48.25], [-107.25, 48.0], [-107.46, 47.5], [-107.25, 47.0], [-107.47, 46.47], [-108.0, 46.25], [-108.53, 46.47], [-108.68, 46.82], [-108.75, 46.85], [-109.0, 46.75], [-109.25, 46.85], [-109.5, 46.75], [-110.03, 46.97], [-110.18, 47.32], [-110.25, 47.35], [-110.32, 47.32], [-110.47, 46.97], [-111.0, 46.75], [-111.53, 46.97], [-111.75, 47.5], [-111.65, 47.75], [-111.68, 47.82], [-112.03, 47.97], [-112.25, 48.5]]]]}, "2019-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.25, 48.5], [-112.03, 49.03], [-111.62, 49.2], [-111.75, 49.5], [-111.53, 50.03], [-111.18, 50.18], [-111.03, 50.53], [-110.68, 50.68], [-110.65, 50.75], [-110.75, 51.0], [-110.53, 51.53], [-110.0, 51.75], [-109.75, 51.65], [-109.5, 51.75], [-108.97, 51.53], [-108.82, 51.18], [-108.75, 51.15], [-108.5, 51.25], [-108.25, 51.15], [-108.0, 51.25], [-107.75, 51.15], [-107.5, 51.25], [-106.97, 51.03], [-106.75, 50.5], [-106.85, 50.25], [-106.75, 50.0], [-106.85, 49.75], [-106.82, 49.68], [-106.47, 49.53], [-106.25, 49.0], [-106.47, 48.47], [-107.0, 48.25], [-107.25, 48.35], [-107.32, 48.32], [-107.35, 48.25], [-107.25, 48.0], [-107.46, 47.5], [-107.25, 47.0], [-107.47, 46.47], [-108.0, 46.25], [-108.53, 46.47], [-108.68, 46.82], [-108.75, 46.85], [-109.0, 46.75], [-109.25, 46.85], [-109.5, 46.75], [-110.03, 46.97], [-110.18, 47.32], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.485080053254308, 29.346636440208556, 29.533389806515345, 27.72115043934798]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.754547415073392, 5.799910432412924, 6.069251555883706, 3.952695938574834]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.610935870998389, 7.123653428869545, 7.4456179710601305, 4.096194387977675]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.378897776920937, 1.6930173841561984, 1.8161259412150716, 1.2621777463396406]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6119818198423055, 2.1239042320453945, 2.1915414310061707, 1.286283536647212]}}