{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:25.352749", "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": "2024-Aug-07_to_2024-Aug-09_293.5_-33.0"}, "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": 2024080000244}, "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": "August 07 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2024"}, "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": "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": 56460.31887536024}, "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": -33.0}, "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": 293.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "293.5\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": 295.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-67.18, -33.32], [-67.15, -33.25], [-67.25, -33.0], [-67.03, -32.47], [-66.68, -32.32], [-66.53, -31.97], [-66.0, -31.75], [-65.7, -31.88], [-65.53, -31.47], [-65.0, -31.25], [-64.47, -31.47], [-64.25, -32.0], [-64.35, -32.25], [-64.25, -32.5], [-64.35, -32.75], [-64.25, -33.0], [-64.35, -33.25], [-64.25, -33.5], [-64.47, -34.03], [-64.82, -34.18], [-64.85, -34.25], [-64.75, -34.5], [-64.85, -34.75], [-64.75, -35.0], [-64.85, -35.25], [-64.75, -35.5], [-64.97, -36.03], [-65.5, -36.25], [-65.75, -36.15], [-66.0, -36.25], [-66.53, -36.03], [-66.75, -35.5], [-66.65, -35.25], [-66.68, -35.18], [-66.75, -35.15], [-67.0, -35.25], [-67.53, -35.03], [-67.75, -34.5], [-67.65, -34.25], [-67.75, -34.0], [-67.53, -33.47], [-67.18, -33.32]]]]}}, "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": {"2024-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -34.0], [-67.52999999999997, -33.47], [-67.18, -33.32], [-67.14999999999998, -33.25], [-67.25, -33.0], [-67.02999999999997, -32.47], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.69999999999999, -31.88], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.47000000000003, -31.47], [-64.25, -32.0], [-64.35000000000002, -32.25], [-64.25, -32.5], [-64.35000000000002, -32.75], [-64.25, -33.0], [-64.35000000000002, -33.25], [-64.25, -33.5], [-64.47000000000003, -34.03], [-64.82, -34.18], [-64.85000000000002, -34.25], [-64.75, -34.5], [-64.85000000000002, -34.75], [-64.75, -35.0], [-64.85000000000002, -35.25], [-64.75, -35.5], [-64.97000000000003, -36.03], [-65.5, -36.25], [-65.75, -36.15], [-66.0, -36.25], [-66.52999999999997, -36.03], [-66.75, -35.5], [-66.64999999999998, -35.25], [-66.68, -35.18], [-66.75, -35.15], [-67.0, -35.25], [-67.52999999999997, -35.03], [-67.75, -34.5], [-67.64999999999998, -34.25], [-67.75, -34.0]]]]}, "2024-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -34.0], [-67.52999999999997, -33.47], [-67.18, -33.32], [-67.14999999999998, -33.25], [-67.25, -33.0], [-67.02999999999997, -32.47], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.69999999999999, -31.88], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.47000000000003, -31.47], [-64.25, -32.0], [-64.35000000000002, -32.25], [-64.25, -32.5], [-64.35000000000002, -32.75], [-64.25, -33.0], [-64.35000000000002, -33.25], [-64.25, -33.5], [-64.47000000000003, -34.03], [-64.82, -34.18], [-64.85000000000002, -34.25], [-64.75, -34.5], [-64.85000000000002, -34.75], [-64.75, -35.0], [-64.85000000000002, -35.25], [-64.75, -35.5], [-64.97000000000003, -36.03], [-65.5, -36.25], [-65.75, -36.15], [-66.0, -36.25], [-66.52999999999997, -36.03], [-66.75, -35.5], [-66.64999999999998, -35.25], [-66.68, -35.18], [-66.75, -35.15], [-67.0, -35.25], [-67.52999999999997, -35.03], [-67.75, -34.5], [-67.64999999999998, -34.25], [-67.75, -34.0]]]]}, "2024-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.75, -34.0], [-67.52999999999997, -33.47], [-67.18, -33.32], [-67.14999999999998, -33.25], [-67.25, -33.0], [-67.02999999999997, -32.47], [-66.68, -32.32], [-66.52999999999997, -31.97], [-66.0, -31.75], [-65.69999999999999, -31.88], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.47000000000003, -31.47], [-64.25, -32.0], [-64.35000000000002, -32.25], [-64.25, -32.5], [-64.35000000000002, -32.75], [-64.25, -33.0], [-64.35000000000002, -33.25], [-64.25, -33.5], [-64.47000000000003, -34.03], [-64.82, -34.18], [-64.85000000000002, -34.25], [-64.75, -34.5], [-64.85000000000002, -34.75], [-64.75, -35.0], [-64.85000000000002, -35.25], [-64.75, -35.5], [-64.97000000000003, -36.03], [-65.5, -36.25], [-65.75, -36.15], [-66.0, -36.25], [-66.52999999999997, -36.03], [-66.75, -35.5], [-66.64999999999998, -35.25], [-66.68, -35.18], [-66.75, -35.15], [-67.0, -35.25], [-67.52999999999997, -35.03], [-67.75, -34.5], [-67.64999999999998, -34.25], [-67.75, -34.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.479590659833889}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.1538243494094855}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.6130950669092385, 4.246247691666724, 5.591797694972911]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.803730162538841, 1.230140098966615, 2.5852913765063477]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.5738936967488435, -6.105963826759421, -4.781615524720192]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.323968775290666, -7.479590659833889, -5.9511910942642885]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4710323879965654, -2.0086821221085627, -1.5253946541145091]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6092732309400388, -2.228574834968882, -1.737766841967193]}}