{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:50.447115", "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": "2021-Nov-20_to_2021-Nov-22_294.5_-34.0"}, "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": 2021110002205}, "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 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 22 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 51429.29392368627}, "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"]}, "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": -34.0}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-67.0, -32.25], [-66.75, -32.35], [-66.68, -32.32], [-66.53, -31.97], [-66.0, -31.75], [-65.47, -31.97], [-65.3, -32.38], [-65.0, -32.25], [-64.75, -32.35], [-64.5, -32.25], [-63.97, -32.47], [-63.75, -33.0], [-63.85, -33.25], [-63.75, -33.5], [-63.97, -34.03], [-64.32, -34.18], [-64.35, -34.25], [-64.25, -34.5], [-64.47, -35.03], [-65.0, -35.25], [-65.25, -35.15], [-65.32, -35.18], [-65.47, -35.53], [-66.0, -35.75], [-66.53, -35.53], [-66.68, -35.18], [-67.03, -35.03], [-67.25, -34.5], [-67.15, -34.25], [-67.18, -34.18], [-67.53, -34.03], [-67.75, -33.5], [-67.65, -33.25], [-67.75, -33.0], [-67.53, -32.47], [-67.0, -32.25]]]]}}, "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": {"2021-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -33.0], [-67.52999999999997, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.47000000000003, -31.97], [-65.30000000000001, -32.38], [-65.0, -32.25], [-64.75, -32.35], [-64.5, -32.25], [-63.97000000000003, -32.47], [-63.75, -33.0], [-63.85000000000002, -33.25], [-63.75, -33.5], [-63.97000000000003, -34.03], [-64.32, -34.18], [-64.35000000000002, -34.25], [-64.25, -34.5], [-64.47000000000003, -35.03], [-65.0, -35.25], [-65.25, -35.15], [-65.32, -35.18], [-65.47000000000003, -35.53], [-66.0, -35.75], [-66.52999999999997, -35.53], [-66.68, -35.18], [-67.02999999999997, -35.03], [-67.25, -34.5], [-67.14999999999998, -34.25], [-67.18, -34.18], [-67.52999999999997, -34.03], [-67.75, -33.5], [-67.64999999999998, -33.25], [-67.75, -33.0]]]]}, "2021-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -33.0], [-67.52999999999997, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.47000000000003, -31.97], [-65.30000000000001, -32.38], [-65.0, -32.25], [-64.75, -32.35], [-64.5, -32.25], [-63.97000000000003, -32.47], [-63.75, -33.0], [-63.85000000000002, -33.25], [-63.75, -33.5], [-63.97000000000003, -34.03], [-64.32, -34.18], [-64.35000000000002, -34.25], [-64.25, -34.5], [-64.47000000000003, -35.03], [-65.0, -35.25], [-65.25, -35.15], [-65.32, -35.18], [-65.47000000000003, -35.53], [-66.0, -35.75], [-66.52999999999997, -35.53], [-66.68, -35.18], [-67.02999999999997, -35.03], [-67.25, -34.5], [-67.14999999999998, -34.25], [-67.18, -34.18], [-67.52999999999997, -34.03], [-67.75, -33.5], [-67.64999999999998, -33.25], [-67.75, -33.0]]]]}, "2021-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -33.0], [-67.52999999999997, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.47000000000003, -31.97], [-65.30000000000001, -32.38], [-65.0, -32.25], [-64.75, -32.35], [-64.5, -32.25], [-63.97000000000003, -32.47], [-63.75, -33.0], [-63.85000000000002, -33.25], [-63.75, -33.5], [-63.97000000000003, -34.03], [-64.32, -34.18], [-64.35000000000002, -34.25], [-64.25, -34.5], [-64.47000000000003, -35.03], [-65.0, -35.25], [-65.25, -35.15], [-65.32, -35.18], [-65.47000000000003, -35.53], [-66.0, -35.75], [-66.52999999999997, -35.53], [-66.68, -35.18], [-67.02999999999997, -35.03], [-67.25, -34.5], [-67.14999999999998, -34.25], [-67.18, -34.18], [-67.52999999999997, -34.03], [-67.75, -33.5], [-67.64999999999998, -33.25], [-67.75, -33.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.22656804492209}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.747750909570555}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.537048229531308, 28.553492602940423, 26.90786348389304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.77342812541343, 31.090120277173696, 29.768965419918118]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.059633362356138, 6.948028466599237, 5.235590899756289]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.195446298245656, 8.22656804492209, 6.072625816080915]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.56353437523228, 2.072768329647114, 1.581418577254385]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8224108483475947, 2.443633956296367, 1.7898795139585857]}}