{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:35.944681", "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": "2022-Feb-25_to_2022-Mar-02_127.0_-14.0"}, "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": 2022020000999}, "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": "February 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 2022"}, "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": "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": 95183.70573569342}, "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": -14.0}, "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": 127.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "127.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[123.47, -15.97], [123.82, -15.82], [123.97, -15.47], [124.32, -15.32], [124.47, -14.97], [124.82, -14.82], [124.97, -14.47], [125.5, -14.25], [125.75, -14.35], [125.82, -14.32], [125.97, -13.97], [126.32, -13.82], [126.47, -13.47], [127.0, -13.25], [127.53, -13.47], [127.68, -13.82], [128.03, -13.97], [128.25, -14.5], [128.15, -14.75], [128.25, -15.0], [128.15, -15.25], [128.25, -15.5], [128.15, -15.75], [128.25, -16.0], [128.03, -16.53], [127.68, -16.68], [127.53, -17.03], [127.0, -17.25], [126.75, -17.15], [126.5, -17.25], [126.25, -17.15], [126.0, -17.25], [125.75, -17.15], [125.5, -17.25], [125.25, -17.15], [125.18, -17.18], [125.03, -17.53], [124.68, -17.68], [124.53, -18.03], [124.0, -18.25], [123.47, -18.03], [123.25, -17.5], [123.35, -17.25], [123.25, -17.0], [123.35, -16.75], [123.25, -16.5], [123.47, -15.97]]]]}}, "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": 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3103955660535513}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.87424597356346, 25.423957930023562, 24.170071968698267, 24.93147022629762, 25.103842037035974, 26.480245164341966]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.688994153970327, 25.100250440136733, 22.193549475945076, 22.955784549029943, 23.575722136777983, 26.18791295325849]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0247919913489625, -2.136218579627922, -2.760956678162848, -2.2319299397570393, -2.082069986683498, -2.0553159889504684]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0868673462607603, -2.544322286205727, -3.7555514816596656, -2.9587784387847478, -3.258014526726015, -2.6797945029196626]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4637658915050342, -1.6019495731620714, -2.1875766015368865, -1.7699005981992766, -1.6762934792864403, -1.6194058464673244]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5772978834324538, -1.916008511043298, -3.3589390234616143, -2.3063851761348952, -2.096162460072105, -1.7518528042340318]}}