{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:02.918797", "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-13_to_2026-Jan-16_296.0_-21.0"}, "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": 2026010001766}, "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 13 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 16 2026"}, "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": 83004.81265103795}, "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", "Bolivia", "Paraguay"]}, "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": []}, "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": -21.0}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\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": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.65, -22.25], [-64.75, -22.0], [-64.54, -21.5], [-64.75, -21.0], [-64.53, -20.47], [-64.0, -20.25], [-63.75, -20.35], [-63.5, -20.25], [-62.97, -20.47], [-62.75, -21.0], [-62.85, -21.25], [-62.75, -21.5], [-62.96, -22.0], [-62.75, -22.5], [-62.97, -23.03], [-63.32, -23.18], [-63.47, -23.53], [-64.0, -23.75], [-64.53, -23.53], [-64.75, -23.0], [-64.65, -22.75], [-64.75, -22.5], [-64.65, -22.25]]]]}, "2026-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -22.5], [-64.65, -22.25], [-64.75, -22.0], [-64.54, -21.5], [-64.75, -21.0], [-64.53, -20.47], [-64.0, -20.25], [-63.75, -20.35], [-63.5, -20.25], [-63.25, -20.35], [-63.0, -20.25], [-62.75, -20.35], [-62.5, -20.25], [-62.25, -20.35], [-62.0, -20.25], [-61.47, -20.47], [-61.25, -21.0], [-61.35, -21.25], [-61.3, -21.38], [-61.0, -21.25], [-60.47, -21.47], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.47, -23.03], [-61.0, -23.25], [-61.25, -23.15], [-61.32, -23.18], [-61.47, -23.53], [-62.0, -23.75], [-62.5, -23.54], [-62.82, -23.68], [-62.97, -24.03], [-63.5, -24.25], [-63.75, -24.15], [-64.0, -24.25], [-64.25, -24.15], [-64.5, -24.25], [-65.03, -24.03], [-65.25, -23.5], [-65.03, -22.97], [-64.68, -22.82], [-64.65, -22.75], [-64.75, -22.5]]]]}, "2026-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -22.5], [-64.65, -22.25], [-64.75, -22.0], [-64.54, -21.5], [-64.75, -21.0], [-64.53, -20.47], [-64.0, -20.25], [-63.75, -20.35], [-63.5, -20.25], [-63.25, -20.35], [-63.0, -20.25], [-62.75, -20.35], [-62.5, -20.25], [-62.25, -20.35], [-62.0, -20.25], [-61.47, -20.47], [-61.25, -21.0], [-61.35, -21.25], [-61.3, -21.38], [-61.0, -21.25], [-60.47, -21.47], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.47, -23.03], [-61.0, -23.25], [-61.25, -23.15], [-61.32, -23.18], [-61.47, -23.53], [-62.0, -23.75], [-62.5, -23.54], [-62.82, -23.68], [-62.97, -24.03], [-63.5, -24.25], [-63.75, -24.15], [-64.0, -24.25], [-64.25, -24.15], [-64.5, -24.25], [-65.03, -24.03], [-65.25, -23.5], [-65.03, -22.97], [-64.68, -22.82], [-64.65, -22.75], [-64.75, -22.5]]]]}, "2026-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -22.5], [-64.65, -22.25], [-64.75, -22.0], [-64.54, -21.5], [-64.75, -21.0], [-64.53, -20.47], [-64.0, -20.25], [-63.75, -20.35], [-63.5, -20.25], [-63.25, -20.35], [-63.0, -20.25], [-62.75, -20.35], [-62.5, -20.25], [-62.25, -20.35], [-62.0, -20.25], [-61.47, -20.47], [-61.25, -21.0], [-61.35, -21.25], [-61.3, -21.38], [-61.0, -21.25], [-60.47, -21.47], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.47, -23.03], [-61.0, -23.25], [-61.25, -23.15], [-61.32, -23.18], [-61.47, -23.53], [-62.0, -23.75], [-62.5, -23.54], [-62.82, -23.68], [-62.97, -24.03], [-63.5, -24.25], [-63.75, -24.15], [-64.0, -24.25], [-64.25, -24.15], [-64.5, -24.25], [-65.03, -24.03], [-65.25, -23.5], [-65.03, -22.97], [-64.68, -22.82], [-64.65, -22.75], [-64.75, -22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.344171403289977}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.245484356375873}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.52789459228518, 31.527524040485275, 32.18699509193158, 31.21947241596797]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.649558003743493, 33.918154652913415, 34.84246215820315, 33.2071306864421]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.157309929794979, 4.177046512734176, 4.91118439016726, 3.910884958849157]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.682284077115071, 5.2618812724319355, 6.344171403289977, 4.435613773038938]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2353702372678173, 1.4931454505734765, 1.80769859830197, 1.4919062071290818]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3138140359053767, 1.8998656788508863, 2.2659885593569995, 1.7869909250039027]}}