{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:38.883351", "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-Apr-13_to_2022-Apr-15_287.5_-51.0"}, "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": 2022040001815}, "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": "April 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2022"}, "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": 164372.9896356728}, "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", "Chile"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -51.0}, "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": 287.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -53.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -46.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-76.03, -48.47], [-75.68, -48.32], [-75.53, -47.97], [-75.18, -47.82], [-75.03, -47.47], [-74.68, -47.32], [-74.65, -47.25], [-74.75, -47.0], [-74.65, -46.75], [-74.75, -46.5], [-74.53, -45.97], [-74.0, -45.75], [-73.75, -45.85], [-73.68, -45.82], [-73.53, -45.47], [-73.0, -45.25], [-72.75, -45.35], [-72.5, -45.25], [-72.25, -45.35], [-72.0, -45.25], [-71.75, -45.35], [-71.5, -45.25], [-70.97, -45.47], [-70.75, -46.0], [-70.87, -46.3], [-70.47, -46.47], [-70.25, -47.0], [-70.47, -47.53], [-70.82, -47.68], [-70.97, -48.03], [-71.5, -48.25], [-71.8, -48.12], [-71.87, -48.3], [-71.47, -48.47], [-71.32, -48.82], [-70.97, -48.97], [-70.82, -49.32], [-70.75, -49.35], [-70.5, -49.25], [-70.25, -49.35], [-70.0, -49.25], [-69.47, -49.47], [-69.25, -50.0], [-69.35, -50.25], [-69.25, -50.5], [-69.47, -51.03], [-69.82, -51.18], [-69.97, -51.53], [-70.37, -51.7], [-70.32, -51.82], [-70.25, -51.85], [-70.0, -51.75], [-69.47, -51.97], [-69.25, -52.5], [-69.47, -53.03], [-70.0, -53.25], [-70.25, -53.15], [-70.32, -53.18], [-70.47, -53.53], [-71.0, -53.75], [-71.53, -53.53], [-71.68, -53.18], [-71.75, -53.15], [-72.0, -53.25], [-72.25, -53.15], [-72.5, -53.25], [-73.03, -53.03], [-73.18, -52.68], [-73.53, -52.53], [-73.68, -52.18], [-74.03, -52.03], [-74.18, -51.68], [-74.25, -51.65], [-74.5, -51.75], [-75.03, -51.53], [-75.25, -51.0], [-75.15, -50.75], [-75.25, -50.5], [-75.15, -50.25], [-75.18, -50.18], [-75.53, -50.03], [-75.68, -49.68], [-76.03, -49.53], [-76.25, -49.0], [-76.03, -48.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.02999999999997, -49.53], [-76.25, -49.0], [-76.02999999999997, -48.47], [-75.68, -48.32], [-75.52999999999997, -47.97], [-75.18, -47.82], [-75.02999999999997, -47.47], [-74.68, -47.32], [-74.64999999999998, -47.25], [-74.75, -47.0], [-74.64999999999998, -46.75], [-74.75, -46.5], [-74.52999999999997, -45.97], [-74.0, -45.75], [-73.75, -45.85], [-73.68, -45.82], [-73.52999999999997, -45.47], [-73.0, -45.25], [-72.75, -45.35], [-72.5, -45.25], [-72.25, -45.35], [-72.0, -45.25], [-71.75, -45.35], [-71.5, -45.25], [-70.97000000000003, -45.47], [-70.75, -46.0], [-70.87, -46.3], [-70.47000000000003, -46.47], [-70.25, -47.0], [-70.47000000000003, -47.53], [-70.82, -47.68], [-70.97000000000003, -48.03], [-71.5, -48.25], [-71.80000000000001, -48.12], [-71.87, -48.3], [-71.47000000000003, -48.47], [-71.32, -48.82], [-70.97000000000003, -48.97], [-70.82, -49.32], [-70.75, -49.35], [-70.5, -49.25], [-70.25, -49.35], [-70.0, -49.25], [-69.47000000000003, -49.47], [-69.25, -50.0], [-69.35000000000002, -50.25], [-69.25, -50.5], [-69.47000000000003, -51.03], [-69.82, -51.18], [-69.97000000000003, -51.53], [-70.37, -51.7], [-70.32, -51.82], [-70.25, -51.85], [-70.0, -51.75], [-69.47000000000003, -51.97], [-69.25, -52.5], [-69.47000000000003, -53.03], [-70.0, -53.25], [-70.25, -53.15], [-70.32, -53.18], [-70.47000000000003, -53.53], [-71.0, -53.75], [-71.52999999999997, -53.53], [-71.68, -53.18], [-71.75, -53.15], [-72.0, -53.25], [-72.25, -53.15], [-72.5, -53.25], [-73.02999999999997, -53.03], [-73.18, -52.68], [-73.52999999999997, -52.53], [-73.68, -52.18], [-74.02999999999997, -52.03], [-74.18, -51.68], [-74.25, -51.65], [-74.5, -51.75], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5], [-75.14999999999998, -50.25], [-75.18, -50.18], [-75.52999999999997, -50.03], [-75.68, -49.68], [-76.02999999999997, -49.53]]]]}, "2022-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.02999999999997, -49.53], [-76.25, -49.0], [-76.02999999999997, -48.47], [-75.68, -48.32], [-75.52999999999997, -47.97], [-75.18, -47.82], [-75.02999999999997, -47.47], [-74.68, -47.32], [-74.64999999999998, -47.25], [-74.75, -47.0], [-74.64999999999998, -46.75], [-74.75, -46.5], [-74.52999999999997, -45.97], [-74.0, -45.75], [-73.75, -45.85], [-73.68, -45.82], [-73.52999999999997, -45.47], [-73.0, -45.25], [-72.75, -45.35], [-72.5, -45.25], [-72.25, -45.35], [-72.0, -45.25], [-71.75, -45.35], [-71.5, -45.25], [-70.97000000000003, -45.47], [-70.75, -46.0], [-70.87, -46.3], [-70.47000000000003, -46.47], [-70.25, -47.0], [-70.47000000000003, -47.53], [-70.82, -47.68], [-70.97000000000003, -48.03], [-71.5, -48.25], [-71.80000000000001, -48.12], [-71.87, -48.3], [-71.47000000000003, -48.47], [-71.32, -48.82], [-70.97000000000003, -48.97], [-70.82, -49.32], [-70.75, -49.35], [-70.5, -49.25], [-70.25, -49.35], [-70.0, -49.25], [-69.47000000000003, -49.47], [-69.25, -50.0], [-69.35000000000002, -50.25], [-69.25, -50.5], [-69.47000000000003, -51.03], [-69.82, -51.18], [-69.97000000000003, -51.53], [-70.37, -51.7], [-70.32, -51.82], [-70.25, -51.85], [-70.0, -51.75], [-69.47000000000003, -51.97], [-69.25, -52.5], [-69.47000000000003, -53.03], [-70.0, -53.25], [-70.25, -53.15], [-70.32, -53.18], [-70.47000000000003, -53.53], [-71.0, -53.75], [-71.52999999999997, -53.53], [-71.68, -53.18], [-71.75, -53.15], [-72.0, -53.25], [-72.25, -53.15], [-72.5, -53.25], [-73.02999999999997, -53.03], [-73.18, -52.68], [-73.52999999999997, -52.53], [-73.68, -52.18], [-74.02999999999997, -52.03], [-74.18, -51.68], [-74.25, -51.65], [-74.5, -51.75], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5], [-75.14999999999998, -50.25], [-75.18, -50.18], [-75.52999999999997, -50.03], [-75.68, -49.68], [-76.02999999999997, -49.53]]]]}, "2022-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.02999999999997, -49.53], [-76.25, -49.0], [-76.02999999999997, -48.47], [-75.68, -48.32], [-75.52999999999997, -47.97], [-75.18, -47.82], [-75.02999999999997, -47.47], [-74.68, -47.32], [-74.64999999999998, -47.25], [-74.75, -47.0], [-74.64999999999998, -46.75], [-74.75, -46.5], [-74.52999999999997, -45.97], [-74.0, -45.75], [-73.75, -45.85], [-73.68, -45.82], [-73.52999999999997, -45.47], [-73.0, -45.25], [-72.75, -45.35], [-72.5, -45.25], [-72.25, -45.35], [-72.0, -45.25], [-71.75, -45.35], [-71.5, -45.25], [-70.97000000000003, -45.47], [-70.75, -46.0], [-70.87, -46.3], [-70.47000000000003, -46.47], [-70.25, -47.0], [-70.47000000000003, -47.53], [-70.82, -47.68], [-70.97000000000003, -48.03], [-71.5, -48.25], [-71.80000000000001, -48.12], [-71.87, -48.3], [-71.47000000000003, -48.47], [-71.32, -48.82], [-70.97000000000003, -48.97], [-70.82, -49.32], [-70.75, -49.35], [-70.5, -49.25], [-70.25, -49.35], [-70.0, -49.25], [-69.47000000000003, -49.47], [-69.25, -50.0], [-69.35000000000002, -50.25], [-69.25, -50.5], [-69.47000000000003, -51.03], [-69.82, -51.18], [-69.97000000000003, -51.53], [-70.37, -51.7], [-70.32, -51.82], [-70.25, -51.85], [-70.0, -51.75], [-69.47000000000003, -51.97], [-69.25, -52.5], [-69.47000000000003, -53.03], [-70.0, -53.25], [-70.25, -53.15], [-70.32, -53.18], [-70.47000000000003, -53.53], [-71.0, -53.75], [-71.52999999999997, -53.53], [-71.68, -53.18], [-71.75, -53.15], [-72.0, -53.25], [-72.25, -53.15], [-72.5, -53.25], [-73.02999999999997, -53.03], [-73.18, -52.68], [-73.52999999999997, -52.53], [-73.68, -52.18], [-74.02999999999997, -52.03], [-74.18, -51.68], [-74.25, -51.65], [-74.5, -51.75], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5], [-75.14999999999998, -50.25], [-75.18, -50.18], [-75.52999999999997, -50.03], [-75.68, -49.68], [-76.02999999999997, -49.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.4956630343590405}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.161914227633716}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.011157345425318, 9.783623947966532, 8.568063507217403]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.636650332175634, 15.004703841140213, 13.132700483088115]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.976729081369409, 4.846327102916384, 3.662686498615349]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.642314780374761, 7.4956630343590405, 5.745766496542899]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6269066850339178, 1.9482137992040938, 1.4704701726676694]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3654172614552715, 2.5051169888838976, 1.8447702700426982]}}