{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:28.113577", "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-Dec-20_to_2010-Dec-25_303.0_-36.0"}, "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": 2010120002429}, "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 20 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 25 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 72925.70612060152}, "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": ["Argentina", "Uruguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "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": ["Rio de La Plata", "South Atlantic 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": -36.0}, "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": 303.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.03, -37.03], [-58.25, -36.5], [-58.03, -35.97], [-57.5, -35.75], [-57.25, -35.85], [-57.0, -35.75], [-56.47, -35.97], [-56.25, -36.5], [-56.47, -37.03], [-57.0, -37.25], [-57.25, -37.15], [-57.5, -37.25], [-58.03, -37.03]]]]}, "2010-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.75, -35.0], [-60.53, -34.47], [-60.0, -34.25], [-59.75, -34.35], [-59.5, -34.25], [-59.25, -34.35], [-59.0, -34.25], [-58.75, -34.35], [-58.5, -34.25], [-58.25, -34.35], [-58.0, -34.25], [-57.75, -34.35], [-57.5, -34.25], [-57.2, -34.38], [-57.03, -33.97], [-56.5, -33.75], [-56.25, -33.85], [-56.0, -33.75], [-55.75, -33.85], [-55.5, -33.75], [-54.97, -33.97], [-54.75, -34.5], [-54.97, -35.03], [-55.32, -35.18], [-55.35, -35.25], [-55.25, -35.5], [-55.47, -36.03], [-55.82, -36.18], [-55.85, -36.25], [-55.75, -36.5], [-55.97, -37.03], [-56.32, -37.18], [-56.47, -37.53], [-57.0, -37.75], [-57.53, -37.53], [-57.68, -37.18], [-58.03, -37.03], [-58.25, -36.5], [-58.15, -36.25], [-58.2, -36.12], [-58.5, -36.25], [-58.75, -36.15], [-59.0, -36.25], [-59.25, -36.15], [-59.5, -36.25], [-60.03, -36.03], [-60.18, -35.68], [-60.53, -35.53], [-60.75, -35.0]]]]}, "2010-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.75, -35.0], [-60.53, -34.47], [-60.0, -34.25], [-59.75, -34.35], [-59.5, -34.25], [-59.25, -34.35], [-59.0, -34.25], [-58.75, -34.35], [-58.5, -34.25], [-58.25, -34.35], [-58.0, -34.25], [-57.75, -34.35], [-57.5, -34.25], [-57.2, -34.38], [-57.03, -33.97], [-56.5, -33.75], [-56.25, -33.85], [-56.0, -33.75], [-55.75, -33.85], [-55.5, -33.75], [-54.97, -33.97], [-54.75, -34.5], [-54.85, -34.75], [-54.75, -35.0], [-54.97, -35.53], [-55.32, -35.68], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.97, -37.53], [-56.5, -37.75], [-56.75, -37.65], [-57.0, -37.75], [-57.53, -37.53], [-57.68, -37.18], [-58.03, -37.03], [-58.25, -36.5], [-58.15, -36.25], [-58.2, -36.12], [-58.5, -36.25], [-58.75, -36.15], [-59.0, -36.25], [-59.25, -36.15], [-59.5, -36.25], [-60.03, -36.03], [-60.18, -35.68], [-60.53, -35.53], [-60.75, -35.0]]]]}, "2010-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.75, -35.0], [-60.53, -34.47], [-60.0, -34.25], [-59.75, -34.35], [-59.5, -34.25], [-59.25, -34.35], [-59.0, -34.25], [-58.75, -34.35], [-58.5, -34.25], [-58.25, -34.35], [-58.0, -34.25], [-57.75, -34.35], [-57.5, -34.25], [-57.2, -34.38], [-57.03, -33.97], [-56.5, -33.75], [-56.25, -33.85], [-56.0, -33.75], [-55.75, -33.85], [-55.5, -33.75], [-54.97, -33.97], [-54.75, -34.5], [-54.85, -34.75], [-54.75, -35.0], [-54.97, -35.53], [-55.32, -35.68], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.97, -37.53], [-56.5, -37.75], [-56.75, -37.65], [-57.0, -37.75], [-57.53, -37.53], [-57.68, -37.18], [-58.03, -37.03], [-58.25, -36.5], [-58.15, -36.25], [-58.2, -36.12], [-58.5, -36.25], [-58.75, -36.15], [-59.0, -36.25], [-59.25, -36.15], [-59.5, -36.25], [-60.03, -36.03], [-60.18, -35.68], [-60.53, -35.53], [-60.75, -35.0]]]]}, "2010-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.25, -35.0], [-58.03, -34.47], [-57.5, -34.25], [-57.0, -34.46], [-56.5, -34.25], [-56.25, -34.35], [-56.0, -34.25], [-55.75, -34.35], [-55.5, -34.25], [-54.97, -34.47], [-54.75, -35.0], [-54.97, -35.53], [-55.32, -35.68], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.97, -37.53], [-56.5, -37.75], [-57.03, -37.53], [-57.25, -37.0], [-57.15, -36.75], [-57.18, -36.68], [-57.53, -36.53], [-57.75, -36.0], [-57.65, -35.75], [-57.68, -35.68], [-58.03, -35.53], [-58.25, -35.0]]]]}, "2010-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.25, -35.0], [-58.03, -34.47], [-57.5, -34.25], [-57.0, -34.46], [-56.5, -34.25], [-56.25, -34.35], [-56.0, -34.25], [-55.75, -34.35], [-55.5, -34.25], [-54.97, -34.47], [-54.75, -35.0], [-54.97, -35.53], [-55.32, -35.68], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.97, -37.53], [-56.5, -37.75], [-57.03, -37.53], [-57.25, -37.0], [-57.15, -36.75], [-57.18, -36.68], [-57.53, -36.53], [-57.75, -36.0], [-57.65, -35.75], [-57.68, -35.68], [-58.03, -35.53], [-58.25, -35.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.354719787471311}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9096121579368894}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.408827516613655, 24.9717194498441, 25.97488773192498, 25.627872634581934, 23.580476146495016, 24.569027716390053]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.522239562421134, 26.72336043487269, 28.957806173864753, 28.86703622488028, 25.59253215111363, 27.33879547017858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.9050677318763007, 3.5775760054785315, 4.635626747642071, 4.138854327247249, 2.751938141152681, 3.575558994115668]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9058440466885145, 4.380346482588891, 6.354719787471311, 6.244233906402144, 3.1616818163752214, 4.67163905898866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4298708554476325, 1.403633454449803, 1.865898058004864, 1.626902486212287, 1.3671393280535822, 1.8402494034301426]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4678796158442147, 1.59629144857221, 2.238894126199997, 2.152614133534082, 1.497169863762986, 2.179607548678992]}}