{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:16.020619", "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": "2011-Dec-27_to_2011-Dec-29_297.0_-17.5"}, "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": 2011120002756}, "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 27 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2011"}, "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": 50014.63318784196}, "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": ["Bolivia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": []}, "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": -17.5}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.0, -16.25], [-63.75, -16.35], [-63.5, -16.25], [-63.25, -16.35], [-63.0, -16.25], [-62.47, -16.47], [-62.32, -16.82], [-62.25, -16.85], [-62.0, -16.75], [-61.47, -16.97], [-61.25, -17.5], [-61.35, -17.75], [-61.25, -18.0], [-61.47, -18.53], [-61.87, -18.7], [-61.75, -19.0], [-61.97, -19.53], [-62.5, -19.75], [-62.75, -19.65], [-63.0, -19.75], [-63.25, -19.65], [-63.5, -19.75], [-64.03, -19.53], [-64.25, -19.0], [-64.04, -18.5], [-64.18, -18.18], [-64.25, -18.15], [-64.5, -18.25], [-65.03, -18.03], [-65.25, -17.5], [-65.03, -16.97], [-64.68, -16.82], [-64.53, -16.47], [-64.0, -16.25]]]]}, "2011-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.0, -16.25], [-63.75, -16.35], [-63.5, -16.25], [-63.25, -16.35], [-63.0, -16.25], [-62.47, -16.47], [-62.32, -16.82], [-62.25, -16.85], [-62.0, -16.75], [-61.47, -16.97], [-61.25, -17.5], [-61.35, -17.75], [-61.25, -18.0], [-61.47, -18.53], [-61.87, -18.7], [-61.75, -19.0], [-61.97, -19.53], [-62.5, -19.75], [-62.75, -19.65], [-63.0, -19.75], [-63.25, -19.65], [-63.5, -19.75], [-64.03, -19.53], [-64.25, -19.0], [-64.04, -18.5], [-64.18, -18.18], [-64.25, -18.15], [-64.5, -18.25], [-65.03, -18.03], [-65.25, -17.5], [-65.03, -16.97], [-64.68, -16.82], [-64.53, -16.47], [-64.0, -16.25]]]]}, "2011-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.0, -16.25], [-63.75, -16.35], [-63.5, -16.25], [-63.25, -16.35], [-63.0, -16.25], [-62.47, -16.47], [-62.32, -16.82], [-62.25, -16.85], [-62.0, -16.75], [-61.47, -16.97], [-61.25, -17.5], [-61.35, -17.75], [-61.25, -18.0], [-61.47, -18.53], [-61.87, -18.7], [-61.75, -19.0], [-61.97, -19.53], [-62.5, -19.75], [-62.75, -19.65], [-63.0, -19.75], [-63.25, -19.65], [-63.5, -19.75], [-64.03, -19.53], [-64.25, -19.0], [-64.04, -18.5], [-64.18, -18.18], [-64.25, -18.15], [-64.5, -18.25], [-65.03, -18.03], [-65.25, -17.5], [-65.03, -16.97], [-64.68, -16.82], [-64.53, -16.47], [-64.0, -16.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.503790905052483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3939560747228827}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.463704639547814, 28.840553959475926, 28.358657299652407]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.267770532820293, 31.406463121382615, 30.534832706330803]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.223213617685932, 2.65109842421852, 2.3075561822641966]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5918066763741763, 3.503790905052483, 2.8269836326817313]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4867735048275816, 1.8105229651656236, 1.5949738120592665]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8688365352403649, 2.262521341224143, 1.9055544518193976]}}