{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:53.938470", "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-Jun-04_to_2020-Jun-06_124.5_-18.0"}, "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": 2020060000146}, "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 04 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 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": 55950.2006799622}, "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": ["Australia"]}, "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": []}, "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": -18.0}, "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": 124.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.0}, "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": "Polygon", "coordinates": [[[122.97, -16.97], [123.5, -16.75], [123.802, -16.875], [123.854, -16.75], [123.75, -16.5], [123.854, -16.25], [123.75, -16.0], [123.97, -15.47], [124.5, -15.25], [125.03, -15.47], [125.25, -16.0], [125.146, -16.25], [125.177, -16.323], [125.25, -16.354], [125.5, -16.25], [125.75, -16.354], [126.0, -16.25], [126.53, -16.47], [126.75, -17.0], [126.646, -17.25], [126.75, -17.5], [126.53, -18.03], [126.177, -18.177], [126.146, -18.25], [126.25, -18.5], [126.146, -18.75], [126.25, -19.0], [126.03, -19.53], [125.5, -19.75], [124.97, -19.53], [124.823, -19.177], [124.75, -19.146], [124.5, -19.25], [124.25, -19.146], [124.0, -19.25], [123.47, -19.03], [123.323, -18.677], [122.97, -18.53], [122.75, -18.0], [122.854, -17.75], [122.75, -17.5], [122.97, -16.97]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-04T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[122.85355339059328, -17.75], [122.75, 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-19.25], [123.46966991411009, -19.03033008588991], [123.32322330470336, -18.67677669529664], [122.96966991411009, -18.53033008588991], [122.75, -18.0], [122.85355339059328, -17.75]]]}, "2020-06-05T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[122.85355339059328, -17.75], [122.75, -17.5], [122.96966991411009, -16.96966991411009], [123.5, -16.75], [123.80177669529664, -16.875], [123.85355339059328, -16.75], [123.75, -16.5], [123.85355339059328, -16.25], [123.75, -16.0], [123.96966991411009, -15.469669914110089], [124.5, -15.25], [125.03033008588991, -15.469669914110089], [125.25, -16.0], [125.14644660940672, -16.25], [125.17677669529664, -16.32322330470336], [125.25, -16.353553390593273], [125.5, -16.25], [125.75, -16.353553390593273], [126.0, -16.25], [126.53033008588991, -16.46966991411009], [126.75, -17.0], [126.64644660940672, -17.25], [126.75, -17.5], [126.53033008588991, -18.03033008588991], [126.17677669529664, -18.17677669529664], [126.14644660940672, -18.25], 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"Mean t2m anomaly over entire duration", "value": -4.324808591697216}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.55067330622694, 18.978963825226458, 19.330228886332748]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.009839281621794, 17.080203914556478, 17.67359506047285]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.145751522085421, -4.645068968660631, -4.183605284345596]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.823594894706105, -5.389689898671918, -4.8478233794533026]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.572872192574231, -1.77952423250012, -1.6079412946760434]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.805658512547189, -1.951717999670579, -1.8085816976378628]}}