{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:54.119776", "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": "2021-Oct-05_to_2021-Oct-08_173.5_-44.5"}, "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": 2021100001382}, "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 05 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 2021"}, "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": 56341.49842810526}, "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"]}, "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": -44.5}, "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": 173.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "173.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 172.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 176.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -45.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.47, -40.47], [175.0, -40.25], [175.53, -40.47], [175.75, -41.0], [175.65, -41.25], [175.75, -41.5], [175.53, -42.03], [175.0, -42.25], [174.47, -42.03], [174.25, -41.5], [174.35, -41.25], [174.25, -41.0], [174.47, -40.47]]]]}, "2021-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[172.75, -43.0], [172.97, -42.47], [173.5, -42.25], [174.0, -42.46], [174.32, -42.32], [174.35, -42.25], [174.32, -42.18], [173.97, -42.03], [173.75, -41.5], [173.97, -40.97], [174.32, -40.82], [174.47, -40.47], [175.0, -40.25], [175.53, -40.47], [175.75, -41.0], [175.65, -41.25], [175.68, -41.32], [176.03, -41.47], [176.18, -41.82], [176.53, -41.97], [176.75, -42.5], [176.65, -42.75], [176.75, -43.0], [176.53, -43.53], [176.18, -43.68], [176.15, -43.75], [176.25, -44.0], [176.03, -44.53], [175.63, -44.7], [175.75, -45.0], [175.53, -45.53], [175.0, -45.75], [174.47, -45.53], [174.32, -45.18], [174.25, -45.15], [174.0, -45.25], [173.75, -45.15], [173.5, -45.25], [173.25, -45.15], [173.0, -45.25], [172.47, -45.03], [172.25, -44.5], [172.47, -43.97], [172.82, -43.82], [172.96, -43.5], [172.75, -43.0]]]]}, "2021-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[172.75, -43.0], [172.97, -42.47], [173.5, -42.25], [174.0, -42.46], [174.32, -42.32], [174.35, -42.25], [174.32, -42.18], [173.97, -42.03], [173.75, -41.5], [173.97, -40.97], [174.32, -40.82], [174.47, -40.47], [175.0, -40.25], [175.53, -40.47], [175.75, -41.0], [175.65, -41.25], [175.68, -41.32], [176.03, -41.47], [176.18, -41.82], [176.53, -41.97], [176.75, -42.5], [176.65, -42.75], [176.75, -43.0], [176.53, -43.53], [176.18, -43.68], [176.15, -43.75], [176.25, -44.0], [176.03, -44.53], [175.63, -44.7], [175.75, -45.0], [175.53, -45.53], [175.0, -45.75], [174.47, -45.53], [174.32, -45.18], [174.25, -45.15], [174.0, -45.25], [173.75, -45.15], [173.5, -45.25], [173.25, -45.15], [173.0, -45.25], [172.47, -45.03], [172.25, -44.5], [172.47, -43.97], [172.82, -43.82], [172.96, -43.5], [172.75, -43.0]]]]}, "2021-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[172.75, -43.0], [172.97, -42.47], [173.5, -42.25], [174.0, -42.46], [174.32, -42.32], [174.35, -42.25], [174.32, -42.18], [173.97, -42.03], [173.75, -41.5], [173.97, -40.97], [174.5, -40.75], [175.03, -40.97], [175.18, -41.32], [175.25, -41.35], [175.5, -41.25], [176.03, -41.47], [176.18, -41.82], [176.53, -41.97], [176.75, -42.5], [176.65, -42.75], [176.75, -43.0], [176.53, -43.53], [176.18, -43.68], [176.15, -43.75], [176.25, -44.0], [176.03, -44.53], [175.63, -44.7], [175.75, -45.0], [175.53, -45.53], [175.0, -45.75], [174.47, -45.53], [174.32, -45.18], [174.25, -45.15], [174.0, -45.25], [173.75, -45.15], [173.5, -45.25], [173.25, -45.15], [173.0, -45.25], [172.47, -45.03], [172.25, -44.5], [172.47, -43.97], [172.82, -43.82], [172.96, -43.5], [172.75, -43.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.968345053743519}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.170024818655223}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.186625801116179, 12.975419395864435, 13.050910527243332, 12.778758807602799]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.300615902689287, 14.346190674422076, 13.981844255910687, 13.960974951128378]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9692679546762974, 2.203409002823298, 2.2679097867381257, 2.0447980761197186]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.978689851874094, 2.968345053743519, 2.9550139655039516, 2.4968636876218966]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.281071043202234, 1.5205680233520367, 1.563333295236539, 1.418813154359685]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3176870751900722, 1.9668504465249395, 2.133277900224249, 1.703087412348244]}}