{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:39.493916", "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-Dec-21_to_2022-Dec-23_298.0_-20.0"}, "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": 2022120002506}, "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": "December 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 23 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": 55147.4960252072}, "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": ["Bolivia, Plurinational State of", "Paraguay"]}, "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": -20.0}, "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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-63.68, -18.82], [-63.53, -18.47], [-63.0, -18.25], [-62.47, -18.47], [-62.32, -18.82], [-62.25, -18.85], [-62.18, -18.82], [-62.03, -18.47], [-61.5, -18.25], [-60.97, -18.47], [-60.82, -18.82], [-60.47, -18.97], [-60.25, -19.5], [-60.47, -20.03], [-60.82, -20.18], [-60.85, -20.25], [-60.75, -20.5], [-60.85, -20.75], [-60.75, -21.0], [-60.97, -21.53], [-61.5, -21.75], [-61.75, -21.65], [-62.0, -21.75], [-62.25, -21.65], [-62.32, -21.68], [-62.47, -22.03], [-63.0, -22.25], [-63.53, -22.03], [-63.75, -21.5], [-63.54, -21.0], [-63.68, -20.68], [-64.03, -20.53], [-64.25, -20.0], [-64.15, -19.75], [-64.25, -19.5], [-64.03, -18.97], [-63.68, -18.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon", "S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -19.5], [-64.02999999999997, -18.97], [-63.68000000000001, -18.82], [-63.52999999999997, -18.47], [-63.0, -18.25], [-62.47000000000003, -18.47], [-62.31999999999999, -18.82], [-62.25, -18.85], [-62.18000000000001, -18.82], [-62.02999999999997, -18.47], [-61.5, -18.25], [-60.97000000000003, -18.47], [-60.81999999999999, -18.82], [-60.47000000000003, -18.97], [-60.25, -19.5], [-60.47000000000003, -20.03], [-60.81999999999999, -20.18], [-60.85000000000002, -20.25], [-60.75, -20.5], [-60.85000000000002, -20.75], [-60.75, -21.0], [-60.97000000000003, -21.53], [-61.5, -21.75], [-61.75, -21.65], [-62.0, -21.75], [-62.25, -21.65], [-62.31999999999999, -21.68], [-62.47000000000003, -22.03], [-63.0, -22.25], [-63.52999999999997, -22.03], [-63.75, -21.5], [-63.54000000000002, -21.0], [-63.68000000000001, -20.68], [-64.02999999999997, -20.53], [-64.25, -20.0], [-64.14999999999998, -19.75], [-64.25, -19.5]]]]}, "2022-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -19.5], [-64.02999999999997, -18.97], [-63.68000000000001, -18.82], [-63.52999999999997, -18.47], [-63.0, -18.25], [-62.47000000000003, -18.47], [-62.31999999999999, -18.82], [-62.25, -18.85], [-62.18000000000001, -18.82], [-62.02999999999997, -18.47], [-61.5, -18.25], [-60.97000000000003, -18.47], [-60.81999999999999, -18.82], [-60.47000000000003, -18.97], [-60.25, -19.5], [-60.47000000000003, -20.03], [-60.81999999999999, -20.18], [-60.85000000000002, -20.25], [-60.75, -20.5], [-60.85000000000002, -20.75], [-60.75, -21.0], [-60.97000000000003, -21.53], [-61.5, -21.75], [-61.75, -21.65], [-62.0, -21.75], [-62.25, -21.65], [-62.31999999999999, -21.68], [-62.47000000000003, -22.03], [-63.0, -22.25], [-63.52999999999997, -22.03], [-63.75, -21.5], [-63.54000000000002, -21.0], [-63.68000000000001, -20.68], [-64.02999999999997, -20.53], [-64.25, -20.0], [-64.14999999999998, -19.75], [-64.25, -19.5]]]]}, "2022-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -19.5], [-64.02999999999997, -18.97], [-63.68000000000001, -18.82], [-63.52999999999997, -18.47], [-63.0, -18.25], [-62.47000000000003, -18.47], [-62.31999999999999, -18.82], [-62.25, -18.85], [-62.18000000000001, -18.82], [-62.02999999999997, -18.47], [-61.5, -18.25], [-60.97000000000003, -18.47], [-60.81999999999999, -18.82], [-60.47000000000003, -18.97], [-60.25, -19.5], [-60.47000000000003, -20.03], [-60.81999999999999, -20.18], [-60.85000000000002, -20.25], [-60.75, -20.5], [-60.85000000000002, -20.75], [-60.75, -21.0], [-60.97000000000003, -21.53], [-61.5, -21.75], [-61.75, -21.65], [-62.0, -21.75], [-62.25, -21.65], [-62.31999999999999, -21.68], [-62.47000000000003, -22.03], [-63.0, -22.25], [-63.52999999999997, -22.03], [-63.75, -21.5], [-63.54000000000002, -21.0], [-63.68000000000001, -20.68], [-64.02999999999997, -20.53], [-64.25, -20.0], [-64.14999999999998, -19.75], [-64.25, -19.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.2120504234255804}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.634296764992414}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.58119016560147, 31.33469774477271, 31.931822177958963]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.09932386983826, 33.099993000324844, 33.844059568596265]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.004282789008423, 3.6558389368006936, 4.242768569168124]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.654393676554207, 4.505887558583595, 5.2120504234255804]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.33426479587047, 1.5899488629909535, 1.851260245175829]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5998035671872026, 1.9321061479156554, 2.112646140109129]}}