{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:18.731610", "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": "2022-Jan-31_to_2022-Feb-03_303.5_-27.0"}, "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": 2022010002909}, "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 31 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2022"}, "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": 123122.76877603607}, "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", "Brazil", "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": -27.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-60.0, -26.25], [-59.75, -26.35], [-59.5, -26.25], [-59.0, -26.46], [-58.68, -26.32], [-58.53, -25.97], [-58.0, -25.75], [-57.47, -25.97], [-57.32, -26.32], [-57.25, -26.35], [-57.18, -26.32], [-57.03, -25.97], [-56.5, -25.75], [-56.25, -25.85], [-56.0, -25.75], [-55.47, -25.97], [-55.32, -26.32], [-55.25, -26.35], [-55.0, -26.25], [-54.47, -26.47], [-54.32, -26.82], [-53.97, -26.97], [-53.82, -27.32], [-53.47, -27.47], [-53.25, -28.0], [-53.47, -28.53], [-53.82, -28.68], [-53.97, -29.03], [-54.32, -29.18], [-54.47, -29.53], [-55.0, -29.75], [-55.25, -29.65], [-55.5, -29.75], [-56.0, -29.54], [-56.5, -29.75], [-56.75, -29.65], [-57.0, -29.75], [-57.53, -29.53], [-57.68, -29.18], [-58.03, -29.03], [-58.18, -28.68], [-58.25, -28.65], [-58.5, -28.75], [-59.03, -28.53], [-59.18, -28.18], [-59.25, -28.15], [-59.5, -28.25], [-60.03, -28.03], [-60.18, -27.68], [-60.53, -27.53], [-60.75, -27.0], [-60.53, -26.47], [-60.0, -26.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.0, -27.25], [-58.52999999999997, -27.03], [-58.75, -26.5], [-58.52999999999997, -25.97], [-58.0, -25.75], [-57.47000000000003, -25.97], [-57.25, -26.5], [-57.02999999999997, -25.97], [-56.5, -25.75], [-56.25, -25.85], [-56.0, -25.75], [-55.47000000000003, -25.97], [-55.31999999999999, -26.32], [-54.97000000000003, -26.47], [-54.75, -27.0], [-54.85000000000002, -27.25], [-54.75, -27.5], [-54.97000000000003, -28.03], [-55.5, -28.25], [-55.75, -28.15], [-56.0, -28.25], [-56.25, -28.15], [-56.5, -28.25], [-56.75, -28.15], [-57.0, -28.25], [-57.52999999999997, -28.03], [-57.75, -27.5], [-57.56999999999999, -27.07], [-58.0, -27.25]], [[-57.43000000000001, -26.93], [-57.18000000000001, -26.82], [-57.14999999999998, -26.75], [-57.25, -26.5], [-57.43000000000001, -26.93]]]]}, "2022-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.52999999999997, -27.53], [-60.75, -27.0], [-60.52999999999997, -26.47], [-60.0, -26.25], [-59.75, -26.35], [-59.5, -26.25], [-59.0, -26.46], [-58.68000000000001, -26.32], [-58.52999999999997, -25.97], [-58.0, -25.75], [-57.47000000000003, -25.97], [-57.31999999999999, -26.32], [-57.25, -26.35], [-57.18000000000001, -26.32], [-57.02999999999997, -25.97], [-56.5, -25.75], [-56.25, -25.85], [-56.0, -25.75], [-55.47000000000003, -25.97], [-55.31999999999999, -26.32], [-55.25, -26.35], [-55.0, -26.25], [-54.47000000000003, -26.47], [-54.31999999999999, -26.82], [-53.97000000000003, -26.97], [-53.81999999999999, -27.32], [-53.47000000000003, -27.47], [-53.25, -28.0], [-53.47000000000003, -28.53], [-53.81999999999999, -28.68], [-53.97000000000003, -29.03], [-54.31999999999999, -29.18], [-54.47000000000003, -29.53], [-55.0, -29.75], [-55.25, -29.65], [-55.5, -29.75], [-56.0, -29.54], [-56.5, -29.75], [-56.75, -29.65], [-57.0, -29.75], [-57.52999999999997, 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-27.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.262597262139479}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.514976317709464}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.705611169458734, 30.704548398935742, 32.15084114887338, 30.33649191893062]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.035705208191587, 32.631334757299726, 34.23848847423022, 31.414864188109107]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.986665320875704, 4.248171683136096, 5.7073841884994145, 3.9156800526774536]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.44378476843184, 5.295332110234199, 7.262597262139479, 4.65605995775968]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3876714036085755, 1.8123933361633662, 2.3823791868046045, 1.6284735198366733]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5785061018104785, 2.2927252219670478, 2.827451112814639, 2.078374170109466]}}