{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:42.102801", "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-Feb-25_to_2024-Feb-28_141.5_-10.5"}, "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": 2024020001833}, "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 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 28 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 72978.54689799744}, "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": ["Arafura Sea", "Coral Sea"]}, "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": -10.5}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[139.5, -9.25], [139.75, -9.35], [140.0, -9.25], [140.25, -9.35], [140.32, -9.32], [140.47, -8.97], [141.0, -8.75], [141.25, -8.85], [141.5, -8.75], [141.75, -8.85], [142.0, -8.75], [142.25, -8.85], [142.5, -8.75], [143.03, -8.97], [143.18, -9.32], [143.53, -9.47], [143.68, -9.82], [144.03, -9.97], [144.25, -10.5], [144.04, -11.0], [144.25, -11.5], [144.03, -12.03], [143.5, -12.25], [142.97, -12.03], [142.82, -11.68], [142.47, -11.53], [142.3, -11.13], [142.18, -11.18], [142.15, -11.25], [142.25, -11.5], [142.03, -12.03], [141.5, -12.25], [141.25, -12.15], [141.0, -12.25], [140.47, -12.03], [140.25, -11.5], [140.38, -11.2], [140.25, -11.15], [140.0, -11.25], [139.47, -11.03], [139.32, -10.68], [138.97, -10.53], [138.75, -10.0], [138.97, -9.47], [139.5, -9.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.97, -8.97], [142.5, -8.75], [143.03, -8.97], [143.25, -9.5], [143.03, -10.03], [142.5, -10.25], [141.97, -10.03], [141.75, -9.5], [141.97, -8.97]]]]}, "2024-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -10.53], [138.75, -10.0], [138.97, -9.47], [139.5, -9.25], [139.75, -9.35], [140.0, -9.25], [140.25, -9.35], [140.32, -9.32], [140.47, -8.97], [141.0, -8.75], [141.25, -8.85], [141.5, -8.75], [141.75, -8.85], [142.0, -8.75], [142.25, -8.85], [142.5, -8.75], [143.03, -8.97], [143.18, -9.32], [143.53, -9.47], [143.68, -9.82], [144.03, -9.97], [144.25, -10.5], [144.04, -11.0], [144.25, -11.5], [144.03, -12.03], [143.5, -12.25], [142.97, -12.03], [142.82, -11.68], [142.47, -11.53], [142.3, -11.13], [142.18, -11.18], [142.15, -11.25], [142.25, -11.5], [142.03, -12.03], [141.5, -12.25], [141.25, -12.15], [141.0, -12.25], [140.47, -12.03], [140.25, -11.5], [140.38, -11.2], [140.25, -11.15], [140.0, -11.25], [139.47, -11.03], [139.32, -10.68], [138.97, -10.53]]]]}, "2024-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -10.53], [138.75, -10.0], [138.97, -9.47], [139.5, -9.25], [139.75, -9.35], [140.0, -9.25], [140.25, -9.35], [140.32, -9.32], [140.47, -8.97], [141.0, -8.75], [141.25, -8.85], [141.5, -8.75], [141.75, -8.85], [142.0, -8.75], [142.25, -8.85], [142.5, -8.75], [143.03, -8.97], [143.18, -9.32], [143.53, -9.47], [143.68, -9.82], [144.03, -9.97], [144.25, -10.5], [144.04, -11.0], [144.25, -11.5], [144.03, -12.03], [143.5, -12.25], [142.97, -12.03], [142.82, -11.68], [142.47, -11.53], [142.3, -11.13], [142.18, -11.18], [142.15, -11.25], [142.25, -11.5], [142.03, -12.03], [141.5, -12.25], [141.25, -12.15], [141.0, -12.25], [140.47, -12.03], [140.25, -11.5], [140.38, -11.2], [140.25, -11.15], [140.0, -11.25], [139.47, -11.03], [139.32, -10.68], [138.97, -10.53]]]]}, "2024-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -10.53], [138.75, -10.0], [138.97, -9.47], [139.5, -9.25], [139.75, -9.35], [140.0, -9.25], [140.25, -9.35], [140.32, -9.32], [140.47, -8.97], [141.0, -8.75], [141.25, -8.85], [141.5, -8.75], [141.75, -8.85], [142.0, -8.75], [142.53, -8.97], [142.68, -9.32], [142.75, -9.35], [143.0, -9.25], [143.53, -9.47], [143.68, -9.82], [144.03, -9.97], [144.25, -10.5], [144.04, -11.0], [144.25, -11.5], [144.03, -12.03], [143.5, -12.25], [142.97, -12.03], [142.82, -11.68], [142.47, -11.53], [142.3, -11.13], [142.18, -11.18], [142.15, -11.25], [142.25, -11.5], [142.03, -12.03], [141.5, -12.25], [141.25, -12.15], [141.0, -12.25], [140.47, -12.03], [140.25, -11.5], [140.38, -11.2], [140.25, -11.15], [140.0, -11.25], [139.47, -11.03], [139.32, -10.68], [138.97, -10.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5647234024992258}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2238290154366576}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.23386983910609, 28.473062053282604, 28.475534987344474, 28.5913325591805]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.23386983910609, 28.75087636500075, 28.727570127945967, 28.883994872141784]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0372157247826408, 1.2210346837012078, 1.1892320292143357, 1.2709596642036372]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0372157247826408, 1.5647234024992258, 1.445846836572457, 1.550785032356771]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3779363166291152, 1.659430209748242, 1.607825370540448, 1.7232081956727565]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3779363166291152, 2.1763676149196485, 1.9157917149946746, 2.0471584338884115]}}