{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:05.754604", "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-20_to_2018-Jun-24_251.0_33.5"}, "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": 2018060002675}, "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 20 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 67069.83902893118}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-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": 33.5}, "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": 251.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "251.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 249.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.0, 34.25], [-108.47, 34.03], [-108.25, 33.5], [-108.47, 32.97], [-109.0, 32.75], [-109.53, 32.97], [-109.75, 33.5], [-109.53, 34.03], [-109.0, 34.25]]]]}, "2018-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.03, 33.97], [-111.25, 34.5], [-111.03, 35.03], [-110.5, 35.25], [-110.25, 35.15], [-110.0, 35.25], [-109.75, 35.15], [-109.5, 35.25], [-109.25, 35.15], [-109.0, 35.25], [-108.75, 35.15], [-108.5, 35.25], [-108.0, 35.04], [-107.5, 35.25], [-106.97, 35.03], [-106.75, 34.5], [-106.85, 34.25], [-106.75, 34.0], [-106.97, 33.47], [-107.32, 33.32], [-107.35, 33.25], [-107.25, 33.0], [-107.47, 32.47], [-107.82, 32.32], [-107.97, 31.97], [-108.5, 31.75], [-109.03, 31.97], [-109.25, 32.5], [-109.15, 32.75], [-109.18, 32.82], [-109.53, 32.97], [-109.68, 33.32], [-110.03, 33.47], [-110.18, 33.82], [-110.25, 33.85], [-110.5, 33.75], [-111.03, 33.97]]]]}, "2018-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.03, 33.97], [-111.25, 34.5], [-111.03, 35.03], [-110.5, 35.25], [-110.25, 35.15], 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[-110.0, 35.25], [-109.75, 35.15], [-109.5, 35.25], [-109.25, 35.15], [-109.0, 35.25], [-108.75, 35.15], [-108.5, 35.25], [-108.0, 35.04], [-107.5, 35.25], [-106.97, 35.03], [-106.75, 34.5], [-106.85, 34.25], [-106.82, 34.18], [-106.47, 34.03], [-106.32, 33.68], [-106.25, 33.65], [-106.0, 33.75], [-105.47, 33.53], [-105.25, 33.0], [-105.35, 32.75], [-105.25, 32.5], [-105.35, 32.25], [-105.25, 32.0], [-105.47, 31.47], [-106.0, 31.25], [-106.25, 31.35], [-106.5, 31.25], [-106.75, 31.35], [-107.0, 31.25], [-107.53, 31.47], [-107.75, 32.0], [-107.65, 32.25], [-107.7, 32.38], [-107.82, 32.32], [-107.97, 31.97], [-108.5, 31.75], [-109.03, 31.97], [-109.25, 32.5], [-109.15, 32.75], [-109.18, 32.82], [-109.53, 32.97], [-109.68, 33.32], [-110.03, 33.47], [-110.18, 33.82], [-110.25, 33.85], [-110.5, 33.75], [-111.03, 33.97]]]]}, "2018-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.25, 34.0], [-108.03, 34.53], [-107.5, 34.75], [-106.97, 34.53], [-106.82, 34.18], 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evolution of maximum standardized t2m anomalies.", "value": [1.2515449666087517, 1.879451385976173, 1.6440066297969917, 2.048197228667158, 1.378601652933775]}}