{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:49.845918", "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": "2023-Oct-24_to_2023-Oct-26_177.5_-39.5"}, "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": 2023100001886}, "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": "October 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 2023"}, "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": "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": 206456.51360818016}, "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": ["New Zealand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["New-Zealand", "S.Pacific-Ocean"]}, "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": ["South Pacific Ocean", "Tasman 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": -39.5}, "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": 177.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "177.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 173.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 180.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -35.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.25, -36.0], [173.47, -35.47], [174.0, -35.25], [174.25, -35.35], [174.5, -35.25], [175.03, -35.47], [175.18, -35.82], [175.25, -35.85], [175.5, -35.75], [175.75, -35.85], [176.0, -35.75], [176.53, -35.97], [176.68, -36.32], [176.75, -36.35], [177.0, -36.25], [177.53, -36.47], [177.68, -36.82], [178.03, -36.97], [178.25, -37.5], [178.13, -37.8], [178.25, -37.85], [178.5, -37.75], [179.03, -37.97], [179.18, -38.32], [179.53, -38.47], [179.68, -38.82], [180.0, -38.96], [180.0, -43.04], [179.68, -43.18], [179.53, -43.53], [179.0, -43.75], [178.75, -43.65], [178.68, -43.68], [178.53, -44.03], [178.0, -44.25], [177.47, -44.03], [177.32, -43.68], [176.97, -43.53], [176.75, -43.0], [176.85, -42.75], [176.75, -42.5], [176.85, -42.25], [176.82, -42.18], [176.75, -42.15], [176.5, -42.25], [175.97, -42.03], [175.75, -41.5], [175.85, -41.25], [175.75, -41.0], [175.85, -40.75], [175.75, -40.5], [175.85, -40.25], [175.75, -40.0], [175.85, -39.75], [175.75, -39.5], [175.88, -39.2], [175.47, -39.03], [175.32, -38.68], [175.25, -38.65], [175.0, -38.75], [174.47, -38.53], [174.32, -38.18], [173.97, -38.03], [173.75, -37.5], [173.85, -37.25], [173.75, -37.0], [173.85, -36.75], [173.82, -36.68], [173.47, -36.53], [173.25, -36.0]]], [[[-179.97, -38.97], [-179.82, -39.32], [-179.47, -39.47], [-179.25, -40.0], [-179.35, -40.25], [-179.25, -40.5], [-179.35, -40.75], [-179.32, -40.82], [-178.97, -40.97], [-178.75, -41.5], [-178.97, -42.03], [-179.5, -42.25], [-179.75, -42.15], [-179.82, -42.18], [-179.85, -42.25], [-179.75, -42.5], [-179.97, -43.03], [-180.0, -43.04], [-180.0, -38.96], [-179.97, -38.97]]]]}, "2023-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.25, -36.0], [173.47, -35.47], [174.0, -35.25], [174.25, -35.35], [174.5, -35.25], [175.03, -35.47], [175.18, -35.82], [175.25, -35.85], [175.5, -35.75], [175.75, -35.85], [176.0, -35.75], [176.53, -35.97], [176.68, -36.32], [176.75, -36.35], [177.0, -36.25], [177.53, -36.47], [177.68, -36.82], [178.03, -36.97], [178.25, -37.5], [178.13, -37.8], [178.25, -37.85], [178.5, -37.75], [179.03, -37.97], [179.18, -38.32], [179.53, -38.47], [179.68, -38.82], [180.0, -38.96], [180.0, -43.04], [179.68, -43.18], [179.53, -43.53], [179.0, -43.75], [178.75, -43.65], [178.68, -43.68], [178.53, -44.03], [178.0, -44.25], [177.47, -44.03], [177.32, -43.68], [176.97, -43.53], [176.75, -43.0], [176.85, -42.75], [176.75, -42.5], [176.85, -42.25], [176.82, -42.18], [176.75, -42.15], [176.5, -42.25], [175.97, -42.03], [175.75, -41.5], [175.85, -41.25], [175.75, -41.0], [175.85, -40.75], [175.75, -40.5], [175.85, -40.25], [175.75, -40.0], [175.85, -39.75], [175.75, -39.5], [175.88, -39.2], [175.47, -39.03], [175.32, -38.68], [175.25, -38.65], [175.0, -38.75], [174.47, -38.53], [174.32, -38.18], [173.97, -38.03], [173.75, -37.5], [173.85, -37.25], [173.75, -37.0], [173.85, -36.75], [173.82, -36.68], [173.47, -36.53], [173.25, -36.0]]], [[[-179.97, -38.97], [-179.82, -39.32], [-179.47, -39.47], [-179.25, -40.0], [-179.35, -40.25], [-179.25, -40.5], [-179.35, -40.75], [-179.32, -40.82], [-178.97, -40.97], [-178.75, -41.5], [-178.97, -42.03], [-179.5, -42.25], [-179.75, -42.15], [-179.82, -42.18], [-179.85, -42.25], [-179.75, -42.5], [-179.97, -43.03], [-180.0, -43.04], [-180.0, -38.96], [-179.97, -38.97]]]]}, "2023-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.25, -36.0], [173.47, -35.47], [174.0, -35.25], [174.25, -35.35], [174.5, -35.25], [175.03, -35.47], [175.18, -35.82], [175.25, -35.85], [175.5, -35.75], [175.75, -35.85], [176.0, -35.75], [176.53, -35.97], [176.68, -36.32], [176.75, -36.35], [177.0, -36.25], [177.53, -36.47], [177.68, -36.82], [178.03, -36.97], [178.25, -37.5], [178.13, -37.8], [178.25, -37.85], [178.5, -37.75], [179.03, -37.97], [179.18, -38.32], [179.53, -38.47], [179.68, -38.82], [180.0, -38.96], [180.0, -43.04], [179.68, -43.18], [179.53, -43.53], [179.0, -43.75], [178.75, -43.65], [178.68, -43.68], [178.53, -44.03], [178.0, -44.25], [177.47, -44.03], [177.32, -43.68], [176.97, -43.53], [176.75, -43.0], [176.85, -42.75], [176.75, -42.5], [176.85, -42.25], [176.82, -42.18], [176.75, -42.15], [176.5, -42.25], [175.97, -42.03], [175.75, -41.5], [175.85, -41.25], [175.75, -41.0], [175.85, -40.75], [175.75, -40.5], [175.85, -40.25], [175.75, -40.0], [175.85, -39.75], [175.75, -39.5], [175.88, -39.2], [175.47, -39.03], [175.32, -38.68], [175.25, -38.65], [175.0, -38.75], [174.47, -38.53], [174.32, -38.18], [173.97, -38.03], [173.75, -37.5], [173.85, -37.25], [173.75, -37.0], [173.85, -36.75], [173.82, -36.68], [173.47, -36.53], [173.25, -36.0]]], [[[-179.97, -38.97], [-179.82, -39.32], [-179.47, -39.47], [-179.25, -40.0], [-179.35, -40.25], [-179.25, -40.5], [-179.35, -40.75], [-179.32, -40.82], [-178.97, -40.97], [-178.75, -41.5], [-178.97, -42.03], [-179.5, -42.25], [-179.75, -42.15], [-179.82, -42.18], [-179.85, -42.25], [-179.75, -42.5], [-179.97, -43.03], [-180.0, -43.04], [-180.0, -38.96], [-179.97, -38.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.104116677901004}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.497211528337885}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.630536954081549, 15.76116440465762, 16.45509173716181]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.79685119837228, 17.75937263681027, 19.037092677302155]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2105618886542278, 2.315483368560112, 2.965589327799314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.09177509749685, 4.153285713999935, 5.104116677901004]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4730151884225848, 1.5383632563134186, 1.9599362263488298]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9877034872466588, 1.9863987596735198, 2.589472563227785]}}