{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:41.972275", "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-Jul-13_to_2024-Jul-16_301.0_-11.0"}, "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": 2024070000447}, "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": "July 13 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2024"}, "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": 102960.8233285925}, "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": -11.0}, "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": 301.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-60.03, -9.47], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.75, -9.35], [-58.5, -9.25], [-58.25, -9.35], [-58.0, -9.25], [-57.47, -9.47], [-57.32, -9.82], [-56.97, -9.97], [-56.82, -10.32], [-56.47, -10.47], [-56.32, -10.82], [-55.97, -10.97], [-55.82, -11.32], [-55.47, -11.47], [-55.25, -12.0], [-55.35, -12.25], [-55.25, -12.5], [-55.35, -12.75], [-55.25, -13.0], [-55.47, -13.53], [-56.0, -13.75], [-56.25, -13.65], [-56.5, -13.75], [-56.75, -13.65], [-57.0, -13.75], [-57.25, -13.65], [-57.5, -13.75], [-57.75, -13.65], [-58.0, -13.75], [-58.53, -13.53], [-58.75, -13.0], [-58.65, -12.75], [-58.75, -12.5], [-58.65, -12.25], [-58.75, -12.0], [-58.65, -11.75], [-58.68, -11.68], [-58.75, -11.65], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-60.03, -11.53], [-60.25, -11.0], [-60.15, -10.75], [-60.25, -10.5], [-60.15, -10.25], [-60.25, -10.0], [-60.03, -9.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, -10.5], [-60.14999999999998, -10.25], [-60.25, -10.0], [-60.02999999999997, -9.47], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.75, -9.35], [-58.5, -9.25], [-58.25, -9.35], [-58.0, -9.25], [-57.47000000000003, -9.47], [-57.31999999999999, -9.82], [-56.97000000000003, -9.97], [-56.81999999999999, -10.32], [-56.47000000000003, -10.47], [-56.31999999999999, -10.82], [-55.97000000000003, -10.97], [-55.81999999999999, -11.32], [-55.47000000000003, -11.47], [-55.25, -12.0], [-55.35000000000002, -12.25], [-55.25, -12.5], [-55.35000000000002, -12.75], [-55.25, -13.0], [-55.47000000000003, -13.53], [-56.0, -13.75], [-56.25, -13.65], [-56.5, -13.75], [-56.75, -13.65], [-57.0, -13.75], [-57.25, -13.65], [-57.5, -13.75], [-57.75, -13.65], [-58.0, -13.75], [-58.52999999999997, -13.53], [-58.75, -13.0], [-58.64999999999998, -12.75], [-58.75, -12.5], [-58.64999999999998, -12.25], [-58.75, -12.0], [-58.64999999999998, -11.75], [-58.68000000000001, -11.68], [-58.75, -11.65], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-60.02999999999997, -11.53], [-60.25, -11.0], [-60.14999999999998, -10.75], [-60.25, -10.5]]]]}, "2024-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, -10.5], [-60.14999999999998, -10.25], [-60.25, -10.0], [-60.02999999999997, -9.47], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.75, -9.35], [-58.5, -9.25], [-58.25, -9.35], [-58.0, -9.25], [-57.47000000000003, -9.47], [-57.31999999999999, -9.82], [-56.97000000000003, -9.97], [-56.81999999999999, -10.32], [-56.47000000000003, -10.47], [-56.31999999999999, -10.82], [-55.97000000000003, -10.97], [-55.81999999999999, -11.32], [-55.47000000000003, -11.47], [-55.25, -12.0], [-55.35000000000002, -12.25], [-55.25, -12.5], [-55.35000000000002, -12.75], [-55.25, -13.0], [-55.47000000000003, -13.53], [-56.0, -13.75], [-56.25, -13.65], [-56.5, -13.75], [-56.75, -13.65], [-57.0, -13.75], [-57.25, -13.65], [-57.5, -13.75], [-57.75, -13.65], [-58.0, -13.75], [-58.52999999999997, -13.53], [-58.75, -13.0], [-58.64999999999998, -12.75], [-58.75, -12.5], [-58.64999999999998, -12.25], [-58.75, -12.0], [-58.64999999999998, -11.75], [-58.68000000000001, -11.68], [-58.75, -11.65], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-60.02999999999997, -11.53], [-60.25, -11.0], [-60.14999999999998, -10.75], [-60.25, -10.5]]]]}, "2024-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, -10.5], [-60.14999999999998, -10.25], [-60.25, -10.0], [-60.02999999999997, -9.47], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.75, -9.35], [-58.5, -9.25], [-58.25, -9.35], [-58.0, -9.25], [-57.47000000000003, -9.47], [-57.31999999999999, -9.82], [-56.97000000000003, -9.97], [-56.81999999999999, -10.32], [-56.47000000000003, -10.47], [-56.31999999999999, -10.82], [-55.97000000000003, -10.97], [-55.81999999999999, -11.32], [-55.47000000000003, -11.47], [-55.25, -12.0], [-55.35000000000002, -12.25], [-55.25, -12.5], [-55.35000000000002, -12.75], [-55.25, -13.0], [-55.47000000000003, -13.53], [-56.0, -13.75], [-56.25, -13.65], [-56.5, -13.75], [-56.75, -13.65], [-57.0, -13.75], [-57.25, -13.65], [-57.5, -13.75], [-57.75, -13.65], [-58.0, -13.75], [-58.52999999999997, -13.53], [-58.75, -13.0], [-58.64999999999998, -12.75], [-58.75, -12.5], [-58.64999999999998, -12.25], [-58.75, -12.0], [-58.64999999999998, -11.75], [-58.68000000000001, -11.68], [-58.75, -11.65], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-60.02999999999997, -11.53], [-60.25, -11.0], [-60.14999999999998, -10.75], [-60.25, -10.5]]]]}, "2024-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -10.0], [-59.52999999999997, -9.47], [-59.0, -9.25], [-58.75, -9.35], [-58.5, -9.25], [-57.97000000000003, -9.47], [-57.75, -10.0], [-57.85000000000002, -10.25], [-57.75, -10.5], [-57.97000000000003, -11.03], [-58.31999999999999, -11.18], [-58.47000000000003, -11.53], [-59.0, -11.75], [-59.52999999999997, -11.53], [-59.75, -11.0], [-59.54000000000002, -10.5], [-59.75, -10.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.694580172916005}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.677432800134015}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.716993789285084, 22.03870299651237, 22.797920859094233, 24.078817148384076]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.838352871732354, 19.82198981599032, 21.020054187574544, 23.135919021264158]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2029301755711668, -2.8658055498298856, -2.084338547605166, -1.6508378829985446]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.694580172916005, -3.8370646700324755, -2.5227768274717164, -1.7592777702478202]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.828548354825284, -1.6605553633191614, -1.194166224772738, -1.0880655058012065]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.262373140038044, -1.8833513887961388, -1.4484823279451866, -1.1812302540922877]}}