{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:32.409175", "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-Apr-03_to_2019-Apr-07_6.5_59.0"}, "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": 2019040001184}, "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": "April 03 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 07 2019"}, "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": 60118.036803144045}, "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": ["Norway"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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 Sea"]}, "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": 59.0}, "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": 6.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 8.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.25, 59.0], [4.47, 59.53], [5.0, 59.75], [5.25, 59.65], [5.5, 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57.35], [4.0, 57.25], [3.47, 57.47], [3.25, 58.0], [3.47, 58.53], [3.82, 58.68], [3.97, 59.03], [4.32, 59.18]]]]}, "2019-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.32, 59.18], [4.35, 59.25], [4.25, 59.5], [4.35, 59.75], [4.25, 60.0], [4.46, 60.5], [4.25, 61.0], [4.47, 61.53], [5.0, 61.75], [5.25, 61.65], [5.5, 61.75], [5.75, 61.65], [6.0, 61.75], [6.25, 61.65], [6.5, 61.75], [7.03, 61.53], [7.25, 61.0], [7.15, 60.75], [7.25, 60.5], [7.15, 60.25], [7.18, 60.18], [7.53, 60.03], [7.68, 59.68], [7.75, 59.65], [8.0, 59.75], [8.53, 59.53], [8.75, 59.0], [8.65, 58.75], [8.75, 58.5], [8.53, 57.97], [8.0, 57.75], [7.75, 57.85], [7.68, 57.82], [7.53, 57.47], [7.0, 57.25], [6.75, 57.35], [6.5, 57.25], [6.25, 57.35], [6.0, 57.25], [5.75, 57.35], [5.5, 57.25], [5.25, 57.35], [5.0, 57.25], [4.75, 57.35], [4.5, 57.25], [4.25, 57.35], [4.0, 57.25], [3.47, 57.47], [3.25, 58.0], [3.47, 58.53], [3.82, 58.68], [3.97, 59.03], [4.32, 59.18]]]]}, "2019-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.32, 59.18], [4.35, 59.25], [4.25, 59.5], [4.35, 59.75], [4.25, 60.0], [4.46, 60.5], [4.25, 61.0], [4.47, 61.53], [5.0, 61.75], [5.25, 61.65], [5.5, 61.75], [5.75, 61.65], [6.0, 61.75], [6.25, 61.65], [6.5, 61.75], [7.03, 61.53], [7.25, 61.0], [7.15, 60.75], [7.25, 60.5], [7.15, 60.25], [7.18, 60.18], [7.53, 60.03], [7.68, 59.68], [7.75, 59.65], [8.0, 59.75], [8.53, 59.53], [8.75, 59.0], [8.65, 58.75], [8.75, 58.5], [8.53, 57.97], [8.0, 57.75], [7.75, 57.85], [7.68, 57.82], [7.53, 57.47], [7.0, 57.25], [6.75, 57.35], [6.5, 57.25], [6.25, 57.35], [6.0, 57.25], [5.75, 57.35], [5.5, 57.25], [5.25, 57.35], [5.0, 57.25], [4.75, 57.35], [4.5, 57.25], [4.25, 57.35], [4.0, 57.25], [3.47, 57.47], [3.25, 58.0], [3.47, 58.53], [3.82, 58.68], [3.97, 59.03], [4.32, 59.18]]]]}, "2019-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 59.0], [5.85, 59.25], [5.75, 59.5], [5.97, 60.03], [6.5, 60.25], [7.03, 60.03], [7.25, 59.5], 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[1.3958499395479351, 2.7835918237975843, 3.3650835612455707, 2.739965554451347, 1.6704656283565316]}}