{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:02.720621", "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-12_to_2026-Jan-15_301.0_-35.0"}, "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": 2026010001706}, "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 12 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 15 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": 69411.22511414252}, "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"]}, "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": -35.0}, "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": 301.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -32.75], [-62.75, -32.5], [-62.53, -31.97], [-62.0, -31.75], [-61.47, -31.97], [-61.32, -32.32], [-61.25, -32.35], [-61.0, -32.25], [-60.75, -32.35], [-60.5, -32.25], [-60.25, -32.35], [-60.0, -32.25], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.47, -32.47], [-58.25, -33.0], [-58.35, -33.25], [-58.32, -33.32], [-57.97, -33.47], [-57.75, -34.0], [-57.85, -34.25], [-57.75, -34.5], [-57.85, -34.75], [-57.75, -35.0], [-57.97, -35.53], [-58.5, -35.75], [-58.75, -35.65], [-59.0, -35.75], [-59.25, -35.65], [-59.5, -35.75], [-60.03, -35.53], [-60.25, -35.0], [-60.15, -34.75], [-60.18, -34.68], [-60.5, -34.54], [-61.0, -34.75], [-61.25, -34.65], [-61.5, -34.75], [-62.03, -34.53], [-62.18, -34.18], [-62.53, -34.03], [-62.75, -33.5], [-62.65, -33.25], [-62.75, -33.0], [-62.65, -32.75]]]]}, "2026-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -32.75], [-62.75, -32.5], [-62.53, -31.97], [-62.0, -31.75], [-61.47, -31.97], [-61.32, -32.32], [-61.25, -32.35], [-61.0, -32.25], [-60.75, -32.35], [-60.5, -32.25], [-60.25, -32.35], [-60.0, -32.25], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.47, -32.47], [-58.25, -33.0], [-58.35, -33.25], [-58.32, -33.32], [-57.97, -33.47], [-57.75, -34.0], [-57.85, -34.25], [-57.75, -34.5], [-57.85, -34.75], [-57.75, -35.0], [-57.97, -35.53], [-58.5, -35.75], [-58.75, -35.65], [-59.0, -35.75], [-59.25, -35.65], [-59.5, -35.75], [-60.03, -35.53], [-60.25, -35.0], [-60.15, -34.75], [-60.18, -34.68], [-60.5, -34.54], [-61.0, -34.75], [-61.25, -34.65], [-61.5, -34.75], [-62.03, -34.53], [-62.18, -34.18], [-62.53, -34.03], [-62.75, -33.5], [-62.65, -33.25], [-62.75, -33.0], [-62.65, -32.75]]]]}, "2026-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -32.75], [-62.75, -32.5], [-62.53, -31.97], [-62.0, -31.75], [-61.47, -31.97], [-61.32, -32.32], [-61.25, -32.35], [-61.0, -32.25], [-60.75, -32.35], [-60.5, -32.25], [-60.25, -32.35], [-60.0, -32.25], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.47, -32.47], [-58.25, -33.0], [-58.35, -33.25], [-58.32, -33.32], [-57.97, -33.47], [-57.75, -34.0], [-57.85, -34.25], [-57.75, -34.5], [-57.85, -34.75], [-57.75, -35.0], [-57.97, -35.53], [-58.5, -35.75], [-58.75, -35.65], [-59.0, -35.75], [-59.25, -35.65], [-59.5, -35.75], [-60.03, -35.53], [-60.25, -35.0], [-60.15, -34.75], [-60.18, -34.68], [-60.5, -34.54], [-61.0, -34.75], [-61.25, -34.65], [-61.5, -34.75], [-62.03, -34.53], [-62.18, -34.18], [-62.53, -34.03], [-62.75, -33.5], [-62.65, -33.25], [-62.75, -33.0], [-62.65, -32.75]]]]}, "2026-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.18, -33.82], [-59.03, -33.47], [-58.5, -33.25], [-57.97, -33.47], [-57.75, -34.0], [-57.85, -34.25], [-57.75, -34.5], [-57.85, -34.75], [-57.75, -35.0], [-57.97, -35.53], [-58.5, -35.75], [-58.75, -35.65], [-59.0, -35.75], [-59.25, -35.65], [-59.5, -35.75], [-60.03, -35.53], [-60.25, -35.0], [-60.03, -34.47], [-59.68, -34.32], [-59.53, -33.97], [-59.18, -33.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.078407246827965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.201089916255064}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.29877370198568, 27.723927457833042, 28.315748210012202, 27.380236138237876]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.61176198323568, 29.559551493326865, 30.464378611246786, 27.548435465494833]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.282532744223374, 3.839439887275708, 4.527969416768262, 3.9910645684953843]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.83797106919593, 5.054077965520264, 6.078407246827965, 4.412365031684203]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6098864450549553, 1.447916266436383, 1.7138638918230944, 1.5093447656674321]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7823908932304657, 1.86528103226566, 2.239916478541764, 1.7266970951407685]}}