{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:28.813746", "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": "2026-Jan-22_to_2026-Jan-26_300.5_-39.0"}, "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": 2026010002036}, "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": "January 22 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2026"}, "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": 62127.045278526464}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.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": ["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": -39.0}, "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": 300.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -41.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.5, -38.25], [-58.97, -38.47], [-58.75, -39.0], [-58.97, -39.53], [-59.5, -39.75], [-60.03, -39.53], [-60.25, -39.0], [-60.03, -38.47], [-59.5, -38.25]]]]}, "2026-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.03, -37.97], [-59.5, -37.75], [-58.97, -37.97], [-58.75, -38.5], [-58.85, -38.75], [-58.75, -39.0], [-58.97, -39.53], [-59.5, -39.75], [-60.03, -39.53], [-60.25, -39.0], [-60.15, -38.75], [-60.25, -38.5], [-60.03, -37.97]]]]}, "2026-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -40.5], [-61.53, -39.97], [-61.18, -39.82], [-61.15, -39.75], [-61.25, -39.5], [-61.03, -38.97], [-60.68, -38.82], [-60.53, -38.47], [-60.18, -38.32], [-60.03, -37.97], [-59.68, -37.82], [-59.53, -37.47], [-59.0, -37.25], [-58.75, -37.35], [-58.5, -37.25], [-58.0, -37.46], [-57.5, -37.25], [-56.97, -37.47], [-56.75, -38.0], [-56.85, -38.25], [-56.75, -38.5], [-56.97, -39.03], [-57.32, -39.18], [-57.47, -39.53], [-57.82, -39.68], [-57.97, -40.03], [-58.32, -40.18], [-58.47, -40.53], [-58.82, -40.68], [-58.97, -41.03], [-59.5, -41.25], [-59.75, -41.15], [-59.82, -41.18], [-59.97, -41.53], [-60.5, -41.75], [-61.03, -41.53], [-61.18, -41.18], [-61.53, -41.03], [-61.75, -40.5]]]]}, "2026-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -40.5], [-61.53, -39.97], [-61.18, -39.82], [-61.15, -39.75], [-61.25, -39.5], [-61.03, -38.97], [-60.68, -38.82], [-60.53, -38.47], [-60.18, -38.32], [-60.03, -37.97], [-59.68, -37.82], [-59.53, -37.47], [-59.0, -37.25], [-58.75, -37.35], [-58.5, -37.25], [-58.0, -37.46], [-57.5, -37.25], [-56.97, -37.47], [-56.75, -38.0], [-56.85, -38.25], [-56.75, -38.5], [-56.97, -39.03], [-57.32, -39.18], [-57.47, -39.53], [-57.82, -39.68], [-57.97, -40.03], [-58.32, -40.18], [-58.47, -40.53], [-58.82, -40.68], [-58.97, -41.03], [-59.5, -41.25], [-59.75, -41.15], [-59.82, -41.18], [-59.97, -41.53], [-60.5, -41.75], [-61.03, -41.53], [-61.18, -41.18], [-61.53, -41.03], [-61.75, -40.5]]]]}, "2026-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -40.5], [-61.53, -39.97], [-61.18, -39.82], [-61.15, -39.75], [-61.25, -39.5], [-61.03, -38.97], [-60.68, -38.82], [-60.53, -38.47], [-60.0, -38.25], [-59.75, -38.35], [-59.62, -38.3], [-59.75, -38.0], [-59.53, -37.47], [-59.0, -37.25], [-58.75, -37.35], [-58.5, -37.25], [-58.0, -37.46], [-57.5, -37.25], [-56.97, -37.47], [-56.75, -38.0], [-56.85, -38.25], [-56.75, -38.5], [-56.97, -39.03], [-57.32, -39.18], [-57.47, -39.53], [-57.82, -39.68], [-57.97, -40.03], [-58.32, -40.18], [-58.47, -40.53], [-58.82, -40.68], [-58.97, -41.03], [-59.5, -41.25], [-59.75, -41.15], [-59.82, -41.18], [-59.97, -41.53], [-60.5, -41.75], [-61.03, -41.53], [-61.18, -41.18], [-61.53, -41.03], [-61.75, -40.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.281967071171209}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.181759652567245}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.00592956542971, 24.455869293212913, 22.578741376827907, 23.46097521659658, 22.333997802734416]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.00592956542971, 25.924375152587913, 26.26563415527346, 28.050897216796898, 25.194573974609398]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7960652379186968, 3.4013227963201302, 2.9534071813343834, 3.8293477655293815, 2.7436173102545105]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7960652379186968, 4.105659792385325, 4.461811134040204, 6.281967071171209, 4.189624626787804]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4347911590387845, 1.3681116120809498, 1.5195597890150923, 1.9507731251698675, 1.429197667624662]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4347911590387845, 1.3864826490430016, 1.9686811727063656, 2.214524235729928, 1.6576384489759128]}}