{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:36.068047", "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-Mar-06_to_2022-Mar-09_308.5_-13.0"}, "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": 2022030000239}, "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": "March 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 09 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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 66351.67003739449}, "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": -13.0}, "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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 307.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-51.82, -14.18], [-51.97, -14.53], [-52.5, -14.75], [-53.03, -14.53], [-53.25, -14.0], [-53.15, -13.75], [-53.25, -13.5], [-53.03, -12.97], [-52.62, -12.8], [-52.75, -12.5], [-52.53, -11.97], [-52.18, -11.82], [-52.03, -11.47], [-51.5, -11.25], [-50.97, -11.47], [-50.82, -11.82], [-50.75, -11.85], [-50.5, -11.75], [-50.25, -11.85], [-50.18, -11.82], [-50.15, -11.75], [-50.25, -11.5], [-50.03, -10.97], [-49.5, -10.75], [-49.25, -10.85], [-49.0, -10.75], [-48.75, -10.85], [-48.5, -10.75], [-47.97, -10.97], [-47.75, -11.5], [-47.96, -12.0], [-47.75, -12.5], [-47.97, -13.03], [-48.5, -13.25], [-49.0, -13.04], [-49.32, -13.18], [-49.47, -13.53], [-49.82, -13.68], [-49.97, -14.03], [-50.5, -14.25], [-50.75, -14.15], [-51.0, -14.25], [-51.5, -14.04], [-51.61, -14.09], [-51.82, -14.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.25, -13.5], [-53.02999999999997, -12.97], [-52.620000000000005, -12.8], [-52.75, -12.5], [-52.52999999999997, -11.97], [-52.18000000000001, -11.82], [-52.02999999999997, -11.47], [-51.5, -11.25], [-50.97000000000003, -11.47], [-50.81999999999999, -11.82], [-50.75, -11.85], [-50.5, -11.75], [-50.25, -11.85], [-50.18000000000001, -11.82], [-50.14999999999998, -11.75], [-50.25, -11.5], [-50.02999999999997, -10.97], [-49.5, -10.75], [-49.25, -10.85], [-49.0, -10.75], [-48.75, -10.85], [-48.5, -10.75], [-47.97000000000003, -10.97], [-47.75, -11.5], [-47.95999999999998, -12.0], [-47.75, -12.5], [-47.97000000000003, -13.03], [-48.5, -13.25], [-49.0, -13.04], [-49.31999999999999, -13.18], [-49.47000000000003, -13.53], [-49.81999999999999, -13.68], [-49.97000000000003, -14.03], [-50.5, -14.25], [-50.75, -14.15], [-51.0, -14.25], [-51.5, -14.04], [-51.81999999999999, -14.18], [-51.97000000000003, -14.53], [-52.5, -14.75], [-53.02999999999997, -14.53], [-53.25, -14.0], [-53.14999999999998, -13.75], [-53.25, -13.5]]]]}, "2022-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.25, -13.5], [-53.02999999999997, -12.97], [-52.620000000000005, -12.8], [-52.75, -12.5], [-52.52999999999997, -11.97], [-52.18000000000001, -11.82], [-52.02999999999997, -11.47], [-51.5, -11.25], [-50.97000000000003, -11.47], [-50.81999999999999, -11.82], [-50.75, -11.85], [-50.5, -11.75], [-50.25, -11.85], [-50.18000000000001, -11.82], [-50.14999999999998, -11.75], [-50.25, -11.5], [-50.02999999999997, -10.97], [-49.5, -10.75], [-49.25, -10.85], [-49.0, -10.75], [-48.75, -10.85], [-48.5, -10.75], [-47.97000000000003, -10.97], [-47.75, -11.5], [-47.95999999999998, -12.0], [-47.75, -12.5], [-47.97000000000003, -13.03], [-48.5, -13.25], [-49.0, -13.04], [-49.31999999999999, -13.18], [-49.47000000000003, -13.53], [-49.81999999999999, -13.68], [-49.97000000000003, -14.03], [-50.5, -14.25], [-50.75, -14.15], [-51.0, -14.25], [-51.5, -14.04], [-51.81999999999999, -14.18], [-51.97000000000003, -14.53], [-52.5, -14.75], [-53.02999999999997, -14.53], [-53.25, -14.0], [-53.14999999999998, -13.75], [-53.25, -13.5]]]]}, "2022-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.25, -13.5], [-53.02999999999997, -12.97], [-52.620000000000005, -12.8], [-52.75, -12.5], [-52.52999999999997, -11.97], [-52.18000000000001, -11.82], [-52.02999999999997, -11.47], [-51.5, -11.25], [-50.97000000000003, -11.47], [-50.81999999999999, -11.82], [-50.75, -11.85], [-50.5, -11.75], [-50.25, -11.85], [-50.18000000000001, -11.82], [-50.14999999999998, -11.75], [-50.25, -11.5], [-50.02999999999997, -10.97], [-49.5, -10.75], [-49.25, -10.85], [-49.0, -10.75], [-48.75, -10.85], [-48.5, -10.75], [-47.97000000000003, -10.97], [-47.75, -11.5], [-47.95999999999998, -12.0], [-47.75, -12.5], [-47.97000000000003, -13.03], [-48.5, -13.25], [-49.0, -13.04], [-49.31999999999999, -13.18], [-49.47000000000003, -13.53], 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-1.7173083000624525}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.552844810159684, 24.52021014027605, 24.64143424759476, 24.645188934019757]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.67553715676985, 23.424341901511127, 23.968704098880323, 24.286630809200858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7009972857013984, -1.7726355431940652, -1.7022265855873038, -1.4540286428129434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.930052127868862, -2.1374300576972587, -2.0659439588544046, -1.483103402881511]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4050147782709517, -1.5201428940641681, -1.511645483104705, -1.3467989448015165]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6452807681522925, -1.844316782126913, -1.7623920873688026, -1.3648633859014538]}}