{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:49.264122", "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": "2024-Mar-19_to_2024-Mar-31_134.0_-33.0"}, "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": 2024030000440}, "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": "March 19 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 31 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 13}, "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": 82899.68585071174}, "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": -33.0}, "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": 134.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 135.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[131.0, -30.75], [131.25, -30.85], [131.5, -30.75], [132.03, -30.97], [132.18, -31.32], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [133.75, -31.85], [134.0, -31.75], [134.53, -31.97], [134.75, -32.5], [134.65, -32.75], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [135.25, -35.65], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.82, -34.68], [133.75, -34.65], [133.5, -34.75], [133.25, -34.65], [133.0, -34.75], [132.47, -34.53], [132.32, -34.18], [131.97, -34.03], [131.75, -33.5], [131.85, -33.25], [131.82, -33.18], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75], [130.75, -32.65], [130.5, -32.75], [129.97, -32.53], [129.75, -32.0], [129.85, -31.75], [129.75, -31.5], [129.97, -30.97], [130.5, -30.75], [130.75, -30.85], [131.0, -30.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.25, -33.0], [133.47, -32.47], [134.0, -32.25], [134.53, -32.47], [134.75, -33.0], [134.63, -33.3], [134.75, -33.35], [135.0, -33.25], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [135.25, -35.65], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.82, -34.68], [133.47, -34.53], [133.25, -34.0], [133.46, -33.5], [133.25, -33.0]]]]}, "2024-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.5, -32.75], [130.97, -32.53], [130.75, -32.0], [130.97, -31.47], [131.5, -31.25], [132.03, -31.47], [132.2, -31.87], [132.5, -31.75], [132.75, -31.85], [133.0, -31.75], [133.25, -31.85], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [135.25, -35.65], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.82, -34.68], [133.47, -34.53], [133.32, -34.18], [132.97, -34.03], [132.82, -33.68], [132.47, -33.53], [132.32, -33.18], [131.97, -33.03], [131.8, -32.62], [131.5, -32.75]]]]}, "2024-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.5, -32.75], [130.97, -32.53], [130.75, -32.0], [130.97, -31.47], [131.5, -31.25], [132.03, -31.47], [132.2, -31.87], [132.5, -31.75], [132.75, -31.85], [133.0, -31.75], [133.25, -31.85], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [135.25, -35.65], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.82, -34.68], [133.47, -34.53], [133.32, -34.18], [132.97, -34.03], [132.82, -33.68], [132.47, -33.53], [132.32, -33.18], [131.97, -33.03], [131.8, -32.62], [131.5, -32.75]]]]}, "2024-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.5, -32.75], [130.97, -32.53], [130.75, -32.0], [130.97, -31.47], [131.5, -31.25], [131.75, -31.35], [132.0, -31.25], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.75, -34.5], [135.53, -35.03], [135.0, -35.25], [134.75, -35.15], [134.5, -35.25], [133.97, -35.03], [133.82, -34.68], [133.47, -34.53], [133.32, -34.18], [132.97, -34.03], [132.82, -33.68], [132.47, -33.53], [132.32, -33.18], [131.97, -33.03], [131.82, -32.68], [131.75, -32.65], [131.5, -32.75]]]]}, "2024-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.97, -30.97], [131.5, -30.75], [132.03, -30.97], [132.18, -31.32], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [133.75, -31.85], [134.0, -31.75], [134.53, -31.97], [134.75, -32.5], [134.65, -32.75], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [134.97, -35.53], [134.82, -35.18], [134.75, -35.15], [134.5, -35.25], [133.97, -35.03], [133.82, -34.68], [133.75, -34.65], [133.5, -34.75], [133.25, -34.65], [133.0, -34.75], [132.47, -34.53], [132.32, -34.18], [131.97, -34.03], [131.75, -33.5], [131.85, -33.25], [131.82, -33.18], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75], [130.47, -32.53], [130.25, -32.0], [130.47, -31.47], [130.82, -31.32], [130.97, -30.97]]]]}, "2024-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.75, -31.5], [129.97, -30.97], [130.5, -30.75], [130.75, -30.85], [131.0, -30.75], [131.25, -30.85], [131.5, -30.75], [132.03, -30.97], [132.18, -31.32], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [133.75, -31.85], [134.0, -31.75], [134.53, -31.97], [134.75, -32.5], [134.65, -32.75], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [134.97, -35.53], [134.82, -35.18], [134.75, -35.15], [134.5, -35.25], [133.97, -35.03], [133.82, -34.68], [133.75, -34.65], [133.5, -34.75], [133.25, -34.65], [133.0, -34.75], [132.47, -34.53], [132.32, -34.18], [131.97, -34.03], [131.75, -33.5], [131.85, -33.25], [131.82, -33.18], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75], [130.75, -32.65], [130.5, -32.75], [129.97, -32.53], [129.75, -32.0], [129.85, -31.75], [129.75, -31.5]]]]}, "2024-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.75, -31.5], [129.97, -30.97], [130.5, -30.75], [130.75, -30.85], [131.0, -30.75], [131.25, -30.85], [131.5, -30.75], [132.03, -30.97], [132.18, -31.32], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [133.75, -31.85], [134.0, -31.75], [134.53, -31.97], [134.75, -32.5], [134.65, -32.75], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.68, -34.32], [136.03, -34.47], [136.25, -35.0], [136.03, -35.53], [135.5, -35.75], [134.97, -35.53], [134.82, -35.18], [134.75, -35.15], [134.5, -35.25], [133.97, -35.03], [133.82, -34.68], [133.75, -34.65], [133.5, -34.75], [133.25, -34.65], [133.0, -34.75], [132.47, -34.53], [132.32, -34.18], [131.97, -34.03], [131.75, -33.5], [131.85, -33.25], [131.82, -33.18], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75], [130.75, -32.65], [130.5, -32.75], [129.97, -32.53], [129.75, -32.0], [129.85, -31.75], [129.75, -31.5]]]]}, "2024-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.75, -31.5], [129.97, -30.97], [130.5, -30.75], [130.75, -30.85], [131.0, -30.75], [131.25, -30.85], [131.5, -30.75], [132.03, -30.97], [132.18, -31.32], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [133.75, -31.85], [134.0, -31.75], [134.53, -31.97], [134.75, -32.5], [134.65, -32.75], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.75, -34.5], [135.53, -35.03], [135.0, -35.25], [134.47, -35.03], [134.32, -34.68], [134.25, -34.65], [134.0, -34.75], [133.47, -34.53], [133.32, -34.18], [132.97, -34.03], [132.82, -33.68], [132.47, -33.53], [132.32, -33.18], [132.25, -33.15], [132.0, -33.25], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75], [130.75, -32.65], [130.5, -32.75], [129.97, -32.53], [129.75, -32.0], [129.85, -31.75], [129.75, -31.5]]]]}, "2024-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.0, -32.75], [130.47, -32.53], [130.25, -32.0], [130.47, -31.47], [131.0, -31.25], [131.25, -31.35], [131.5, -31.25], [131.75, -31.35], [132.0, -31.25], [132.25, -31.35], [132.5, -31.25], [132.75, -31.35], [133.0, -31.25], [133.53, -31.47], [133.68, -31.82], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.18, -33.32], [135.53, -33.47], [135.75, -34.0], [135.65, -34.25], [135.75, -34.5], [135.53, -35.03], [135.0, -35.25], [134.47, -35.03], [134.32, -34.68], [134.25, -34.65], [134.0, -34.75], [133.47, -34.53], [133.32, -34.18], [132.97, -34.03], [132.82, -33.68], [132.47, -33.53], [132.32, -33.18], [132.25, -33.15], [132.0, -33.25], [131.47, -33.03], [131.32, -32.68], [131.25, -32.65], [131.0, -32.75]]]]}, "2024-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.0, -32.75], [130.47, -32.53], [130.25, -32.0], [130.47, -31.47], [131.0, -31.25], [131.25, -31.35], [131.5, -31.25], [131.75, -31.35], [132.0, -31.25], [132.25, -31.35], [132.5, -31.25], [133.03, -31.47], [133.18, -31.82], [133.25, -31.85], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.25, -33.5], [135.03, -34.03], [134.5, -34.25], [133.97, -34.03], [133.82, -33.68], [133.75, -33.65], [133.5, -33.75], [133.25, -33.65], [133.0, -33.75], [132.47, -33.53], [132.32, -33.18], [131.97, -33.03], [131.82, -32.68], [131.75, -32.65], [131.5, -32.75], [131.25, -32.65], [131.0, -32.75]]]]}, "2024-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -33.03], [132.75, -32.5], [132.97, -31.97], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.25, -33.5], [135.03, -34.03], [134.5, -34.25], [133.97, -34.03], [133.82, -33.68], [133.47, -33.53], [133.32, -33.18], [132.97, -33.03]]]]}, "2024-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -33.03], [132.75, -32.5], [132.97, -31.97], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.25, -33.5], [135.03, -34.03], [134.5, -34.25], [133.97, -34.03], [133.82, -33.68], [133.47, -33.53], [133.32, -33.18], [132.97, -33.03]]]]}, "2024-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -33.03], [132.75, -32.5], [132.97, -31.97], [133.5, -31.75], [134.03, -31.97], [134.18, -32.32], [134.53, -32.47], [134.68, -32.82], [135.03, -32.97], [135.25, -33.5], [135.03, -34.03], [134.5, -34.25], [133.97, -34.03], [133.82, -33.68], [133.47, -33.53], [133.32, -33.18], [132.97, -33.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.4168167513450385}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4343400793519576}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.418226898924786, 16.302230404449062, 16.359365880255837, 16.353071132316302, 16.232578057265926, 15.434327625887988, 15.81007354256451, 16.124146013511847, 16.15261014487919, 16.43232990941226, 16.158060770877853, 16.01970266411115, 15.953879220347119]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.994097903755176, 15.668895562824105, 15.52679279025034, 15.402124598089927, 14.877117588740134, 14.057400517173619, 13.930981572168378, 14.577447060129714, 15.273590160063748, 15.78459114665469, 15.914073909138494, 15.614914016774549, 15.701722178665023]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7664072784470477, -2.1439866646063894, -1.9954234226533591, -2.1976950331713505, -2.321698396698559, -3.195246328927871, -2.7699758719660834, -2.482008148087594, -2.3138569009320804, -2.1630904615413753, -1.8625264338103307, -1.945683482957539, -1.9250505865159464]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9816023303828842, -2.6582766121140935, -2.3662344628052665, -2.9767839090616235, -3.211577362753758, -4.4168167513450385, -3.810789815703572, -3.279813494596965, -3.0813458204420954, -2.671411900772398, -1.92622090697256, -2.047513288801838, -2.0105709663667994]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.277291877291974, -1.5222508759175886, -1.4143286733267697, -1.3863300911608423, -1.5098417636839099, -1.9265260108613749, -1.6527757615907264, -1.4169939657160429, -1.3498548218349296, -1.234926328543413, -1.0821388596867447, -1.108725744145574, -1.1306886093665893]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4612178235429376, -1.724017780835676, -1.681029440290179, -1.701596154036133, -2.091196947808697, -2.472295342090433, -2.466227898284481, -1.9766660478681655, -1.6766795997275652, -1.5936111618704734, -1.0942365850866456, -1.2153490966932827, -1.1575892943840018]}}