{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:55.248772", "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-Jan-01_to_2018-Jan-06_297.0_7.5"}, "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": 2018010001239}, "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": "January 01 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 06 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 70476.4907646217}, "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": ["Guyana", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["North Atlantic Ocean"]}, "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": 7.5}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.5, 8.75], [-60.97, 8.53], [-60.75, 8.0], [-60.97, 7.47], [-61.5, 7.25], [-62.03, 7.47], [-62.25, 8.0], [-62.03, 8.53], [-61.5, 8.75]]]]}, "2018-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.68, 8.68], [-62.53, 9.03], [-62.0, 9.25], [-61.75, 9.15], [-61.5, 9.25], [-61.25, 9.15], [-61.0, 9.25], [-60.47, 9.03], [-60.25, 8.5], [-60.35, 8.25], [-60.25, 8.0], [-60.47, 7.47], [-60.82, 7.32], [-60.97, 6.97], [-61.5, 6.75], [-61.75, 6.85], [-62.0, 6.75], [-62.5, 6.96], [-63.0, 6.75], [-63.53, 6.97], [-63.75, 7.5], [-63.53, 8.03], [-63.18, 8.18], [-63.03, 8.53], [-62.68, 8.68]]]]}, "2018-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.53, 8.03], [-63.18, 8.18], [-63.03, 8.53], [-62.68, 8.68], [-62.53, 9.03], [-62.0, 9.25], [-61.75, 9.15], [-61.5, 9.25], [-61.25, 9.15], [-61.0, 9.25], [-60.47, 9.03], [-60.25, 8.5], [-60.35, 8.25], [-60.32, 8.18], [-60.0, 8.04], [-59.5, 8.25], [-59.25, 8.15], [-59.0, 8.25], [-58.75, 8.15], [-58.5, 8.25], [-57.97, 8.03], [-57.75, 7.5], [-57.85, 7.25], [-57.82, 7.18], [-57.47, 7.03], [-57.25, 6.5], [-57.47, 5.97], [-58.0, 5.75], [-58.53, 5.97], [-58.68, 6.32], [-59.0, 6.46], [-59.5, 6.25], [-59.75, 6.35], [-60.0, 6.25], [-60.25, 6.35], [-60.5, 6.25], [-60.75, 6.35], [-61.0, 6.25], [-61.53, 6.47], [-61.68, 6.82], [-61.75, 6.85], [-62.0, 6.75], [-62.25, 6.85], [-62.32, 6.82], [-62.47, 6.47], [-63.0, 6.25], [-63.53, 6.47], [-63.75, 7.0], [-63.65, 7.25], [-63.75, 7.5], [-63.53, 8.03]]]]}, "2018-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.53, 8.03], [-63.18, 8.18], [-63.03, 8.53], [-62.68, 8.68], [-62.53, 9.03], [-62.0, 9.25], [-61.75, 9.15], [-61.5, 9.25], [-61.25, 9.15], [-61.0, 9.25], [-60.47, 9.03], [-60.25, 8.5], [-60.35, 8.25], [-60.32, 8.18], [-60.0, 8.04], [-59.5, 8.25], [-59.25, 8.15], [-59.0, 8.25], [-58.75, 8.15], [-58.5, 8.25], [-57.97, 8.03], [-57.75, 7.5], [-57.85, 7.25], [-57.82, 7.18], [-57.47, 7.03], [-57.25, 6.5], [-57.47, 5.97], [-58.0, 5.75], [-58.53, 5.97], [-58.68, 6.32], [-59.0, 6.46], [-59.5, 6.25], [-59.75, 6.35], [-60.0, 6.25], [-60.25, 6.35], [-60.5, 6.25], [-60.75, 6.35], [-61.0, 6.25], [-61.53, 6.47], [-61.68, 6.82], [-61.75, 6.85], [-62.0, 6.75], [-62.25, 6.85], [-62.32, 6.82], [-62.47, 6.47], [-63.0, 6.25], [-63.53, 6.47], [-63.75, 7.0], [-63.65, 7.25], [-63.75, 7.5], [-63.53, 8.03]]]]}, "2018-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.53, 8.03], [-63.18, 8.18], [-63.03, 8.53], [-62.68, 8.68], [-62.53, 9.03], [-62.0, 9.25], [-61.75, 9.15], [-61.5, 9.25], [-61.25, 9.15], [-61.0, 9.25], [-60.47, 9.03], [-60.25, 8.5], [-60.35, 8.25], [-60.32, 8.18], [-60.0, 8.04], [-59.5, 8.25], [-59.25, 8.15], [-59.0, 8.25], [-58.75, 8.15], [-58.5, 8.25], [-57.97, 8.03], [-57.75, 7.5], [-57.85, 7.25], [-57.82, 7.18], [-57.47, 7.03], [-57.25, 6.5], [-57.47, 5.97], [-58.0, 5.75], [-58.53, 5.97], [-58.68, 6.32], [-59.0, 6.46], [-59.5, 6.25], [-59.75, 6.35], [-60.0, 6.25], [-60.25, 6.35], [-60.5, 6.25], [-60.75, 6.35], [-61.0, 6.25], [-61.53, 6.47], [-61.68, 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