{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:17.905278", "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": "2020-May-05_to_2020-May-07_169.5_-17.5"}, "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": 2020050000149}, "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": "May 05 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 94427.25039511218}, "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": ["Vanuatu"]}, "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": ["Coral Sea", "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": -17.5}, "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": 169.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "169.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 166.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 170.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[165.75, -16.5], [165.97, -15.97], [166.5, -15.75], [166.75, -15.854], [167.0, -15.75], [167.25, -15.854], [167.5, -15.75], [167.75, -15.854], [168.0, -15.75], [168.25, -15.854], [168.5, -15.75], [168.75, -15.854], [169.0, -15.75], [169.25, -15.854], [169.5, -15.75], [169.75, -15.854], [170.0, -15.75], [170.53, -15.97], [170.677, -16.323], [171.03, -16.47], [171.25, -17.0], [171.146, -17.25], [171.25, -17.5], [171.146, -17.75], [171.25, -18.0], [171.03, -18.53], [170.677, -18.677], [170.53, -19.03], [170.0, -19.25], [169.75, -19.146], [169.5, -19.25], [169.25, -19.146], [169.0, -19.25], [168.47, -19.03], [168.323, -18.677], [168.25, -18.646], [168.0, -18.75], [167.47, -18.53], [167.323, -18.177], [166.97, -18.03], [166.823, -17.677], [166.47, -17.53], [166.323, -17.177], [165.97, -17.03], [165.75, -16.5]]]}}, "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": {"2020-05-05T11:30:00.000000000": {"type": 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"description": "The daily evolution of mean t2m anomalies.", "value": [-1.4784943902694074, -1.3632133881299708, -1.1691231337682542]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.303004985279756, -1.799969395648418, -1.5887924955865174]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.310606660042467, -2.154794337477679, -1.815346299203097]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.674054600328423, -2.7978388032460733, -2.4491526297307553]}}