{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:49.762571", "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": "2020-Dec-31_to_2021-Jan-03_167.0_-16.5"}, "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": 2020120002947}, "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": "December 31 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 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": 68578.97789560676}, "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": ["Vanuatu"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Coral Sea", "South Pacific Ocean"]}, "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": -16.5}, "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": 167.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "167.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 166.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 169.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.75, -16.0], [165.97, -15.47], [166.32, -15.32], [166.35, -15.25], [166.25, -15.0], [166.35, -14.75], [166.32, -14.68], [165.97, -14.53], [165.75, -14.0], [165.97, -13.47], [166.32, -13.32], [166.47, -12.97], [167.0, -12.75], [167.53, -12.97], [167.75, -13.5], [167.65, -13.75], [167.68, -13.82], [167.75, -13.85], [168.0, -13.75], [168.25, -13.85], [168.5, -13.75], [168.75, -13.85], [169.0, -13.75], [169.53, -13.97], [169.75, -14.5], [169.53, -15.03], [169.18, -15.18], [169.03, -15.53], [168.68, -15.68], [168.65, -15.75], [168.75, -16.0], [168.65, -16.25], [168.75, -16.5], [168.53, -17.03], [168.18, -17.18], [168.03, -17.53], [167.5, -17.75], [166.97, -17.53], [166.82, -17.18], [166.47, -17.03], [166.32, -16.68], [165.97, -16.53], [165.75, -16.0]]]]}, "2021-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.75, -16.0], [165.97, -15.47], [166.32, -15.32], [166.35, -15.25], [166.25, -15.0], [166.35, -14.75], [166.32, -14.68], [165.97, -14.53], [165.75, -14.0], [165.97, -13.47], [166.32, -13.32], [166.47, -12.97], [167.0, -12.75], [167.53, -12.97], [167.75, -13.5], [167.65, -13.75], [167.68, -13.82], [167.75, -13.85], [168.0, -13.75], [168.25, -13.85], [168.5, -13.75], [168.75, -13.85], [169.0, -13.75], [169.53, -13.97], [169.75, -14.5], [169.53, -15.03], [169.18, -15.18], [169.03, -15.53], [168.68, -15.68], [168.65, -15.75], [168.75, -16.0], [168.65, -16.25], [168.75, -16.5], [168.53, -17.03], [168.18, -17.18], [168.03, -17.53], [167.5, -17.75], [166.97, -17.53], [166.82, -17.18], [166.47, -17.03], [166.32, -16.68], [165.97, -16.53], [165.75, -16.0]]]]}, "2021-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.75, -16.0], [165.97, -15.47], [166.32, -15.32], [166.35, -15.25], [166.25, -15.0], [166.35, -14.75], [166.32, -14.68], [165.97, -14.53], [165.75, -14.0], [165.97, -13.47], [166.32, -13.32], [166.47, -12.97], [167.0, -12.75], [167.53, -12.97], [167.75, -13.5], [167.65, -13.75], [167.68, -13.82], [167.75, -13.85], [168.0, -13.75], [168.25, -13.85], [168.5, -13.75], [168.75, -13.85], [169.0, -13.75], [169.53, -13.97], [169.75, -14.5], [169.53, -15.03], [169.18, -15.18], [169.03, -15.53], [168.68, -15.68], [168.65, -15.75], [168.75, -16.0], [168.65, -16.25], [168.75, -16.5], [168.53, -17.03], [168.18, -17.18], [168.03, -17.53], [167.5, -17.75], [166.97, -17.53], [166.82, -17.18], [166.47, -17.03], [166.32, -16.68], [165.97, -16.53], [165.75, -16.0]]]]}, "2021-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[167.47, -14.97], [168.0, -14.75], [168.53, -14.97], [168.75, -15.5], [168.53, -16.03], [168.0, -16.25], [167.57, -16.07], [167.75, -16.5], [167.53, -17.03], [167.0, -17.25], [166.47, -17.03], [166.25, -16.5], [166.47, -15.97], [167.0, -15.75], [167.43, -15.93], [167.25, -15.5], [167.47, -14.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.488823542218256}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9228997466377638}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.745954011230424, 27.952292427301018, 27.79507622821984, 27.519953118072806]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.33207231906499, 28.600448932078905, 28.188683953037184, 27.790481538929555]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.85784476851831, 1.0491506191480258, 0.8826849140351645, 0.681617536073361]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0502652489127513, 1.488823542218256, 1.235777818706822, 0.6898192067547484]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.546667822328756, 1.9032086674106663, 1.5919200854142372, 1.2789622929042561]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8808598768304812, 2.774377199255129, 1.9669595216675382, 1.2920610314033636]}}