{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:44.978471", "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": "2018-Aug-04_to_2018-Aug-06_128.5_-32.0"}, "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": 2018080000243}, "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": "August 04 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 2018"}, "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": 73680.39733829725}, "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": ["S.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": ["Great Australian Bight"]}, "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": -32.0}, "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": 128.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 130.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -31.25], [123.75, -31.0], [123.97, -30.47], [124.5, -30.25], [124.75, -30.35], [124.82, -30.32], [124.97, -29.97], [125.5, -29.75], [126.03, -29.97], [126.18, -30.32], [126.25, -30.35], [126.5, -30.25], [126.75, -30.35], [127.0, -30.25], [127.53, -30.47], [127.68, -30.82], [128.03, -30.97], [128.18, -31.32], [128.25, -31.35], [128.5, -31.25], [128.75, -31.35], [129.0, -31.25], [129.25, -31.35], [129.5, -31.25], [129.75, -31.35], [130.0, -31.25], [130.53, -31.47], [130.75, -32.0], [130.53, -32.53], [130.0, -32.75], [129.75, -32.65], [129.5, -32.75], [129.25, -32.65], [129.0, -32.75], [128.75, -32.65], [128.5, -32.75], [128.25, -32.65], [128.0, -32.75], [127.75, -32.65], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.68, -32.68], [126.53, -33.03], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [124.97, -33.03], [124.82, -32.68], [124.75, -32.65], [124.5, -32.75], [123.97, -32.53], [123.75, -32.0], [123.85, -31.75], [123.75, -31.5], [123.85, -31.25]]]]}, "2018-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -31.25], [123.75, -31.0], [123.97, -30.47], [124.5, -30.25], [124.75, -30.35], [124.82, -30.32], [124.97, -29.97], [125.5, -29.75], [126.03, -29.97], [126.18, -30.32], [126.25, -30.35], [126.5, -30.25], [126.75, -30.35], [127.0, -30.25], [127.53, -30.47], [127.68, -30.82], [128.03, -30.97], [128.18, -31.32], [128.25, -31.35], [128.5, -31.25], [128.75, -31.35], [129.0, -31.25], [129.25, -31.35], [129.5, -31.25], [129.75, -31.35], [130.0, -31.25], [130.53, -31.47], [130.75, -32.0], [130.53, -32.53], [130.0, -32.75], [129.75, -32.65], [129.5, -32.75], [129.25, -32.65], [129.0, -32.75], [128.75, -32.65], [128.5, -32.75], [128.25, -32.65], [128.0, -32.75], [127.75, -32.65], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.68, -32.68], [126.53, -33.03], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [124.97, -33.03], [124.82, -32.68], [124.75, -32.65], [124.5, -32.75], [123.97, -32.53], [123.75, -32.0], [123.85, -31.75], [123.75, -31.5], [123.85, -31.25]]]]}, "2018-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.85, -31.25], [123.75, -31.0], [123.97, -30.47], [124.5, -30.25], [124.75, -30.35], [124.82, -30.32], [124.97, -29.97], [125.5, -29.75], [126.03, -29.97], [126.18, -30.32], [126.25, -30.35], [126.5, -30.25], [126.75, -30.35], [127.0, -30.25], [127.53, -30.47], [127.68, -30.82], [128.03, -30.97], [128.18, -31.32], [128.25, -31.35], [128.5, -31.25], [128.75, -31.35], [129.0, -31.25], [129.25, -31.35], [129.5, -31.25], [129.75, -31.35], [130.0, -31.25], [130.53, -31.47], [130.75, -32.0], [130.53, -32.53], [130.0, -32.75], [129.75, -32.65], [129.5, -32.75], [129.25, -32.65], [129.0, -32.75], [128.75, -32.65], [128.5, -32.75], [128.25, -32.65], [128.0, -32.75], [127.75, -32.65], [127.5, -32.75], [127.25, -32.65], [127.0, -32.75], [126.75, -32.65], [126.68, -32.68], [126.53, -33.03], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [124.97, -33.03], [124.82, -32.68], [124.75, -32.65], [124.5, -32.75], [123.97, -32.53], [123.75, -32.0], [123.85, -31.75], [123.75, -31.5], [123.85, -31.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.76897737910474}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.310821087169161}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.222215114124879, 9.110072111041632, 10.166841497466123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.127882182938151, 7.855129069613724, 8.642286327961813]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7780498732922143, -4.040506801503208, -3.11390658671206]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.376848704140741, -4.76897737910474, -4.024619354257766]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.248374683927512, -1.742895717766581, -1.2950661344692624]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4491718150353925, -2.2586945886916805, -1.519500040668611]}}