{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:41.690558", "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": "2025-Jul-19_to_2025-Jul-23_202.5_-20.5"}, "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": 2025070002453}, "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": "July 19 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 23 2025"}, "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": 170052.3311295932}, "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": ["Cook Islands"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Pacific 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": -20.5}, "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": 202.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "202.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 195.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 203.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-158.0, -21.04], [-158.5, -21.25], [-159.03, -21.03], [-159.18, -20.68], [-159.25, -20.65], [-159.5, -20.75], [-160.03, 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[-160.25, -17.65], [-160.32, -17.68], [-160.35, -17.75], [-160.25, -18.0], [-160.37, -18.3], [-159.97, -18.47], [-159.82, -18.82], [-159.75, -18.85], [-159.5, -18.75], [-158.97, -18.97], [-158.82, -19.32], [-158.5, -19.46], [-158.0, -19.25], [-157.75, -19.35], [-157.68, -19.32], [-157.53, -18.97], [-157.0, -18.75], [-156.47, -18.97], [-156.32, -19.32], [-155.97, -19.47], [-155.75, -20.0], [-155.97, -20.53], [-156.32, -20.68], [-156.47, -21.03], [-157.0, -21.25], [-157.25, -21.15], [-157.5, -21.25], [-158.0, -21.04]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-157.5, -21.25], [-158.03, -21.03], [-158.25, -20.5], [-158.03, -19.97], [-157.5, -19.75], [-156.97, -19.97], [-156.75, -20.5], [-156.97, 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