{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:49.325273", "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": "2023-Jan-25_to_2023-Jan-28_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": 2023010002792}, "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 25 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 28 2023"}, "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": 69115.68211379925}, "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, Plurinational State of", "Paraguay"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "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": 295.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-64.53, -19.47], [-64.0, -19.25], [-63.75, -19.35], [-63.5, -19.25], [-62.97, -19.47], [-62.82, -19.82], [-62.75, -19.85], [-62.5, -19.75], [-61.97, -19.97], [-61.82, -20.32], [-61.47, -20.47], [-61.25, -21.0], [-61.35, -21.25], [-61.25, -21.5], [-61.35, -21.75], [-61.25, -22.0], [-61.35, -22.25], [-61.25, -22.5], [-61.47, -23.03], [-62.0, -23.25], [-62.25, -23.15], [-62.5, -23.25], [-62.75, -23.15], [-63.0, -23.25], [-63.25, -23.15], [-63.5, -23.25], [-64.03, -23.03], [-64.25, -22.5], [-64.15, -22.25], [-64.25, -22.0], [-64.12, -21.7], [-64.25, -21.65], [-64.5, -21.75], [-65.03, -21.53], [-65.25, -21.0], [-65.15, -20.75], [-65.25, -20.5], [-65.03, -19.97], [-64.68, -19.82], [-64.53, -19.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon", "S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -20.5], [-65.02999999999997, -19.97], [-64.68, -19.82], [-64.52999999999997, -19.47], [-64.0, -19.25], [-63.75, -19.35], [-63.5, -19.25], [-62.97000000000003, -19.47], [-62.81999999999999, -19.82], [-62.47000000000003, -19.97], [-62.31999999999999, -20.32], [-62.25, -20.35], [-62.0, -20.25], [-61.47000000000003, -20.47], [-61.25, -21.0], [-61.35000000000002, -21.25], [-61.25, -21.5], [-61.35000000000002, -21.75], [-61.25, -22.0], [-61.35000000000002, -22.25], [-61.25, -22.5], [-61.47000000000003, -23.03], [-62.0, -23.25], [-62.25, -23.15], [-62.5, -23.25], [-62.75, -23.15], [-63.0, -23.25], [-63.25, -23.15], [-63.5, -23.25], [-64.02999999999997, -23.03], [-64.25, -22.5], [-64.14999999999998, -22.25], [-64.25, -22.0], [-64.12, -21.7], [-64.25, -21.65], [-64.5, -21.75], [-65.02999999999997, -21.53], [-65.25, -21.0], [-65.14999999999998, -20.75], [-65.25, -20.5]]]]}, "2023-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -20.5], [-65.02999999999997, -19.97], [-64.68, -19.82], [-64.52999999999997, -19.47], [-64.0, -19.25], [-63.75, -19.35], [-63.5, -19.25], [-62.97000000000003, -19.47], [-62.81999999999999, -19.82], [-62.75, -19.85], [-62.5, -19.75], [-61.97000000000003, -19.97], [-61.81999999999999, -20.32], [-61.47000000000003, -20.47], [-61.25, -21.0], [-61.35000000000002, -21.25], [-61.25, -21.5], [-61.35000000000002, -21.75], [-61.25, -22.0], [-61.35000000000002, -22.25], [-61.25, -22.5], [-61.47000000000003, -23.03], [-62.0, -23.25], [-62.25, -23.15], [-62.5, -23.25], [-62.75, -23.15], [-63.0, -23.25], [-63.25, -23.15], [-63.5, -23.25], [-64.02999999999997, -23.03], [-64.25, -22.5], [-64.14999999999998, -22.25], [-64.25, -22.0], [-64.12, -21.7], [-64.25, -21.65], [-64.5, -21.75], [-65.02999999999997, -21.53], [-65.25, -21.0], [-65.14999999999998, -20.75], [-65.25, -20.5]]]]}, "2023-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -20.5], [-65.02999999999997, -19.97], [-64.68, -19.82], [-64.52999999999997, -19.47], [-64.0, -19.25], [-63.75, -19.35], [-63.5, -19.25], [-62.97000000000003, -19.47], [-62.81999999999999, -19.82], [-62.75, -19.85], [-62.5, -19.75], [-61.97000000000003, -19.97], [-61.81999999999999, -20.32], [-61.47000000000003, -20.47], [-61.25, -21.0], [-61.35000000000002, -21.25], [-61.25, -21.5], [-61.35000000000002, -21.75], [-61.25, -22.0], [-61.35000000000002, -22.25], [-61.25, -22.5], [-61.47000000000003, -23.03], [-62.0, -23.25], [-62.25, -23.15], [-62.5, -23.25], [-62.75, -23.15], [-63.0, -23.25], [-63.25, -23.15], [-63.5, -23.25], [-64.02999999999997, -23.03], [-64.25, -22.5], [-64.14999999999998, -22.25], [-64.25, -22.0], [-64.12, -21.7], [-64.25, -21.65], [-64.5, -21.75], [-65.02999999999997, -21.53], [-65.25, -21.0], [-65.14999999999998, -20.75], [-65.25, -20.5]]]]}, "2023-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.02999999999997, -20.53], [-64.25, -20.0], [-64.02999999999997, -19.47], [-63.5, -19.25], [-62.97000000000003, -19.47], [-62.81999999999999, -19.82], [-62.75, -19.85], [-62.5, -19.75], [-61.97000000000003, -19.97], [-61.75, -20.5], [-61.85000000000002, -20.75], [-61.75, -21.0], [-61.85000000000002, -21.25], [-61.75, -21.5], [-61.85000000000002, -21.75], [-61.75, -22.0], [-61.97000000000003, -22.53], [-62.5, -22.75], [-62.75, -22.65], [-63.0, -22.75], [-63.52999999999997, -22.53], [-63.75, -22.0], [-63.64999999999998, -21.75], [-63.75, -21.5], [-63.64999999999998, -21.25], [-63.75, -21.0], [-63.64999999999998, -20.75], [-63.68000000000001, -20.68], [-64.02999999999997, -20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.673383211509872}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.953948083977547}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.69355517003106, 29.441276482195292, 30.769628461738023, 31.00505508276217]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.79905057111404, 33.528886420889364, 35.12982456747335, 32.41395633603935]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.688663488501356, 3.4211108998491206, 4.809784606094293, 3.770566037781186]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.912927024680357, 4.442955573281893, 6.673383211509872, 4.285176244139279]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.629330102784164, 1.44960561781083, 1.979027083658556, 1.419736139832269]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.513652839366581, 2.1324369376636465, 2.759863566487462, 1.681746032231637]}}