{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-30 06:07:29.049395", "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": "2026-Jul-18_to_2026-Jul-22_126.5_-14.5"}, "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": 2026070000637}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 18 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2026"}, "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": "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": 50587.56539676288}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": -14.5}, "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": 126.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -15.97], [124.0, -15.75], [124.25, -15.85], 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-14.0], [127.65, -14.25], [127.75, -14.5], [127.65, -14.75], [127.75, -15.0], [127.53, -15.53], [127.18, -15.68], [127.03, -16.03], [126.68, -16.18], [126.53, -16.53], [126.18, -16.68], [126.03, -17.03], [125.5, -17.25], [125.25, -17.15], [125.18, -17.18], [125.03, -17.53], [124.5, -17.75], [124.25, -17.65], [124.0, -17.75], [123.47, -17.53], [123.25, -17.0], [123.35, -16.75], [123.25, -16.5], [123.47, -15.97]]]]}, "2026-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -15.97], [124.0, -15.75], [124.25, -15.85], [124.32, -15.82], [124.47, -15.47], [124.82, -15.32], [124.97, -14.97], [125.32, -14.82], [125.47, -14.47], [125.82, -14.32], [125.97, -13.97], [126.32, -13.82], [126.47, -13.47], [127.0, -13.25], [127.53, -13.47], [127.75, -14.0], [127.65, -14.25], [127.75, -14.5], [127.65, -14.75], [127.75, -15.0], [127.53, -15.53], [127.18, -15.68], [127.03, -16.03], [126.68, -16.18], [126.53, -16.53], [126.18, -16.68], [126.03, -17.03], [125.5, -17.25], [125.25, -17.15], [125.18, -17.18], [125.03, -17.53], [124.5, -17.75], [124.25, -17.65], [124.0, -17.75], [123.47, -17.53], [123.25, -17.0], [123.35, -16.75], [123.25, -16.5], [123.47, -15.97]]]]}, "2026-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.0, -13.25], [127.53, -13.47], [127.75, -14.0], [127.65, -14.25], [127.75, -14.5], [127.53, -15.03], [127.0, -15.25], [126.75, -15.15], [126.5, -15.25], [125.97, -15.03], [125.75, -14.5], [125.97, -13.97], [126.32, -13.82], [126.47, -13.47], [127.0, -13.25]]]]}, "2026-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.0, -13.25], [127.53, -13.47], [127.75, -14.0], [127.65, -14.25], [127.75, -14.5], [127.53, -15.03], [127.0, -15.25], [126.75, -15.15], [126.5, -15.25], [125.97, -15.03], [125.75, -14.5], [125.97, -13.97], [126.32, -13.82], [126.47, -13.47], [127.0, -13.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.340867542688784}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.2802705620466908}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.700640614827478, 18.153979537066334, 18.970276955997292, 20.448432328965907, 19.81085442437069]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.122271474202478, 15.653251902262411, 16.747654215494833, 19.81241887410482, 19.228117879231775]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.167519621217078, -3.756023820864126, -2.9782467531913257, -2.77358976833032, -3.4414064706791314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7894369452651517, -4.340867542688784, -3.2806167363178247, -3.042685289441465, -3.8325750610146656]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.578049226160118, -1.8419438725601869, -1.4383740842470738, -1.3818898065974767, -1.6783492943682525]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8444350028513434, -2.0295937221841953, -1.6326894118089637, -1.4815617539698605, -1.8301588768764199]}}