{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:38.361555", "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-Feb-02_to_2022-Feb-05_88.5_61.0"}, "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": 2022020001440}, "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": "February 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2022"}, "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": "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": 97211.03511087876}, "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": ["Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 61.0}, "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": 88.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "88.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 85.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 93.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 59.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[84.97, 61.03], [85.32, 61.18], [85.47, 61.53], [85.82, 61.68], [85.97, 62.03], [86.5, 62.25], [86.75, 62.15], [87.0, 62.25], 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[84.97, 61.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia", "E.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[85.5, 59.75], [84.97, 59.97], [84.75, 60.5], [84.97, 61.03], [85.5, 61.25], [85.75, 61.15], [86.0, 61.25], [86.25, 61.15], [86.32, 61.18], [86.47, 61.53], [87.0, 61.75], [87.25, 61.65], [87.32, 61.68], [87.47, 62.03], [88.0, 62.25], [88.25, 62.15], [88.5, 62.25], [88.75, 62.15], [89.0, 62.25], [89.25, 62.15], [89.32, 62.18], [89.47, 62.53], [90.0, 62.75], [90.25, 62.65], [90.5, 62.75], [91.03, 62.53], [91.18, 62.18], [91.53, 62.03], [91.75, 61.5], [91.53, 60.97], [91.0, 60.75], [90.75, 60.85], [90.5, 60.75], [90.25, 60.85], [90.18, 60.82], [90.15, 60.75], [90.25, 60.5], [90.15, 60.25], [90.18, 60.18], [90.53, 60.03], [90.75, 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 14.115525571136942}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.189827884036772}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-8.983753196395583, -9.011819790204413, -8.766145865192755, -7.830812540166221]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-7.710582181512507, -7.571684265495662, -7.545215039990637, -5.998665366605167]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [12.168350117066291, 12.37206976865114, 11.86006754536046, 12.347589580807712]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [13.018987822158664, 13.72427877799376, 13.009769646721452, 14.115525571136942]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.204465882883827, 1.2553316181277356, 1.2801663097745803, 1.4128684117323864]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.281717925274614, 1.3346384754661147, 1.3329888746613523, 1.537664852008091]}}