{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:34.577014", "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": "2010-Apr-25_to_2010-Apr-29_174.0_-44.0"}, "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": 2010040002240}, "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": "April 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 29 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 71408.49834930233}, "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"]}, "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": -44.0}, "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": 174.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "174.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 171.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 177.75}, "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": -42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.97, -43.53], [174.75, -43.0], [174.97, -42.47], [175.5, -42.25], [175.75, -42.35], [175.82, -42.32], [175.97, -41.97], [176.5, -41.75], [176.75, -41.85], [177.0, -41.75], [177.25, -41.85], [177.5, -41.75], [178.03, -41.97], [178.25, -42.5], [178.03, -43.03], [177.68, -43.18], [177.53, -43.53], [177.0, -43.75], [176.75, -43.65], [176.5, -43.75], [176.25, -43.65], [176.0, -43.75], [175.75, -43.65], [175.5, -43.75], [174.97, -43.53]]]]}, "2010-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.97, -43.53], [174.75, -43.0], [174.97, -42.47], [175.5, -42.25], [175.75, -42.35], [175.82, -42.32], [175.97, -41.97], [176.5, -41.75], [176.75, -41.85], [177.0, -41.75], [177.25, -41.85], [177.5, -41.75], [178.03, -41.97], [178.25, -42.5], [178.03, -43.03], [177.68, -43.18], [177.53, -43.53], [177.0, -43.75], [176.75, -43.65], [176.5, -43.75], [176.25, -43.65], [176.0, -43.75], [175.75, -43.65], [175.5, -43.75], [174.97, -43.53]]]]}, "2010-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.47, -43.97], [171.82, -43.82], [171.97, -43.47], [172.32, -43.32], [172.35, -43.25], [172.25, -43.0], [172.47, -42.47], [173.0, -42.25], [173.25, -42.35], [173.5, -42.25], [173.75, -42.35], [174.0, -42.25], [174.53, -42.47], [174.68, -42.82], [174.75, -42.85], [174.82, -42.82], [174.97, -42.47], [175.5, -42.25], [175.75, -42.35], [175.82, -42.32], [175.97, -41.97], [176.5, -41.75], [176.75, -41.85], [177.0, -41.75], [177.25, -41.85], [177.5, -41.75], [178.03, -41.97], [178.25, -42.5], [178.03, -43.03], [177.68, -43.18], [177.53, -43.53], [177.0, -43.75], [176.75, -43.65], [176.5, -43.75], [176.25, -43.65], [176.13, -43.7], [176.25, -44.0], [176.03, -44.53], [175.5, -44.75], [175.25, -44.65], [175.18, -44.68], [175.03, -45.03], [174.5, -45.25], [174.25, -45.15], [174.18, -45.18], [174.03, -45.53], [173.5, -45.75], [173.25, -45.65], [173.0, -45.75], [172.75, -45.65], [172.5, -45.75], [172.25, -45.65], [172.0, -45.75], [171.47, -45.53], [171.25, -45.0], [171.35, -44.75], [171.25, -44.5], [171.47, -43.97]]]]}, "2010-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.47, -43.97], [171.82, -43.82], [171.97, -43.47], [172.32, -43.32], [172.35, -43.25], [172.25, -43.0], [172.47, -42.47], [173.0, -42.25], [173.25, -42.35], [173.5, -42.25], [173.75, -42.35], [174.0, -42.25], [174.53, -42.47], [174.68, -42.82], [174.75, -42.85], [175.0, -42.75], [175.53, -42.97], [175.68, -43.32], [176.03, -43.47], [176.25, -44.0], [176.03, -44.53], [175.5, -44.75], [175.25, -44.65], [175.18, -44.68], [175.03, -45.03], [174.5, -45.25], [174.25, -45.15], [174.18, -45.18], [174.03, -45.53], [173.5, -45.75], [173.25, -45.65], [173.0, -45.75], [172.75, -45.65], [172.5, -45.75], [172.25, -45.65], [172.0, -45.75], [171.47, -45.53], [171.25, -45.0], [171.35, -44.75], [171.25, -44.5], [171.47, -43.97]]]]}, "2010-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.47, -43.97], [171.82, -43.82], [171.97, -43.47], [172.32, -43.32], [172.35, -43.25], [172.25, -43.0], 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t2m.", "value": [16.49213475282494, 16.39090950302227, 15.086564009478707, 14.62419222811991, 15.279059837847058]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.99484473421859, 17.024283264763937, 17.33058604504788, 15.768607605315594, 17.29380761278486]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.4708371608356936, 2.3616184138202567, 2.5573450997906093, 2.5921373976396715, 3.306669663875532]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7029177109855596, 2.585526471750825, 3.2421611880616297, 3.4244955255742298, 5.653526693014044]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3798176292613575, 1.3136122514880262, 1.6459089572478314, 1.7636056512412075, 2.3064655497481197]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4803875490541518, 1.3496994685804238, 1.9424088197853475, 2.165439366685527, 2.6802939635938263]}}