{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:58.243919", "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-Nov-25_to_2022-Nov-30_304.0_-17.0"}, "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": 2022110002751}, "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": "November 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 30 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 118616.87668612384}, "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": ["Brazil"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -17.0}, "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": 304.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "304.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 302.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-57.25, -14.85], [-57.18, -14.82], [-57.15, -14.75], [-57.25, -14.5], [-57.03, -13.97], [-56.5, -13.75], [-56.25, -13.85], [-56.0, -13.75], [-55.47, -13.97], [-55.32, -14.32], [-55.25, -14.35], [-55.0, -14.25], [-54.47, -14.47], [-54.3, -14.88], [-54.0, -14.75], [-53.75, -14.85], [-53.5, -14.75], [-52.97, -14.97], [-52.75, -15.5], [-52.85, -15.75], [-52.75, -16.0], [-52.97, -16.53], [-53.32, -16.68], [-53.47, -17.03], [-54.0, -17.25], [-54.25, -17.15], [-54.32, -17.18], [-54.35, -17.25], [-54.25, -17.5], [-54.47, -18.03], [-54.82, -18.18], [-54.97, -18.53], [-55.32, -18.68], [-55.47, -19.03], [-56.0, -19.25], [-56.53, -19.03], [-56.68, -18.68], [-57.03, -18.53], [-57.18, -18.18], [-57.53, -18.03], [-57.75, -17.5], [-57.65, -17.25], [-57.75, -17.0], [-57.65, -16.75], [-57.68, -16.68], [-58.03, -16.53], [-58.25, -16.0], [-58.15, -15.75], [-58.25, -15.5], [-58.03, -14.97], [-57.5, -14.75], [-57.25, -14.85]], [[-54.65, -15.75], [-54.7, -15.62], [-54.87, -15.7], [-54.82, -15.82], [-54.75, -15.85], [-54.68, -15.82], [-54.65, -15.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.25, -15.5], [-58.02999999999997, -14.97], [-57.5, -14.75], [-56.97000000000003, -14.97], [-56.81999999999999, -15.32], [-56.75, -15.35], [-56.5, -15.25], [-56.25, -15.35], [-56.0, -15.25], [-55.47000000000003, -15.47], [-55.31999999999999, -15.82], [-55.0, -15.96], [-54.5, -15.75], [-53.97000000000003, -15.97], [-53.75, -16.5], [-53.97000000000003, -17.03], [-54.31999999999999, -17.18], [-54.35000000000002, -17.25], [-54.25, -17.5], [-54.47000000000003, -18.03], [-54.81999999999999, -18.18], [-54.97000000000003, -18.53], [-55.31999999999999, -18.68], [-55.47000000000003, -19.03], [-56.0, -19.25], [-56.52999999999997, -19.03], [-56.68000000000001, -18.68], [-57.02999999999997, -18.53], [-57.18000000000001, 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"value": 3.724130962459185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4707426492428013}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.40591941290893, 29.95240225912835, 29.634729903089465, 29.194448012588566, 29.277922312226565, 29.29101675047383]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.59859546732804, 31.732790384577925, 31.896649441430384, 31.412199369348855, 31.72290233804364, 30.619871484725365]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6556306788399247, 2.5115159723964737, 2.591419327659885, 2.3240589855879317, 2.47819774730908, 2.1060329643728153]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m 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