{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:27.976420", "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": "2010-Dec-18_to_2010-Dec-21_104.0_41.5"}, "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": 2010120002368}, "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 18 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 21 2010"}, "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": 76017.12558636305}, "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": ["China", "Mongolia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 41.5}, "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": 104.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "104.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 98.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.25, 41.5], [102.47, 42.03], [103.0, 42.25], [103.25, 42.15], [103.5, 42.25], [103.75, 42.15], [104.0, 42.25], [104.25, 42.15], [104.5, 42.25], [104.75, 42.15], [105.0, 42.25], [105.25, 42.15], [105.5, 42.25], [106.03, 42.03], [106.25, 41.5], [106.03, 40.97], [105.5, 40.75], [105.25, 40.85], [105.0, 40.75], [104.75, 40.85], [104.5, 40.75], [104.25, 40.85], [104.0, 40.75], [103.75, 40.85], [103.5, 40.75], [103.25, 40.85], [103.0, 40.75], [102.47, 40.97], [102.25, 41.5]]], [[[100.75, 42.0], [100.97, 42.53], [101.5, 42.75], [102.03, 42.53], [102.25, 42.0], [102.03, 41.47], [101.5, 41.25], [100.97, 41.47], [100.75, 42.0]]], [[[98.75, 43.0], [98.97, 43.53], [99.5, 43.75], [100.03, 43.53], [100.25, 43.0], [100.03, 42.47], [99.5, 42.25], [98.97, 42.47], [98.75, 43.0]]]]}, "2010-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 43.0], [98.47, 43.53], [99.0, 43.75], [99.25, 43.65], [99.5, 43.75], [100.03, 43.53], [100.18, 43.18], [100.25, 43.15], [100.5, 43.25], [101.03, 43.03], [101.18, 42.68], [101.25, 42.65], [101.5, 42.75], [101.75, 42.65], [102.0, 42.75], [102.3, 42.63], [102.47, 43.03], [103.0, 43.25], [103.25, 43.15], [103.5, 43.25], [104.03, 43.03], [104.25, 42.5], [104.15, 42.25], [104.18, 42.18], [104.25, 42.15], [104.5, 42.25], [104.75, 42.15], [105.0, 42.25], [105.25, 42.15], [105.32, 42.18], [105.35, 42.25], [105.25, 42.5], [105.47, 43.03], [106.0, 43.25], [106.25, 43.15], [106.5, 43.25], [107.03, 43.03], [107.25, 42.5], [107.03, 41.97], [106.68, 41.82], [106.53, 41.47], [106.18, 41.32], [106.15, 41.25], [106.25, 41.0], [106.03, 40.47], [105.5, 40.25], [105.25, 40.35], [105.0, 40.25], [104.75, 40.35], [104.5, 40.25], [104.25, 40.35], [104.0, 40.25], [103.75, 40.35], [103.5, 40.25], [102.97, 40.47], [102.82, 40.82], [102.75, 40.85], [102.5, 40.75], [102.25, 40.85], [102.0, 40.75], [101.5, 40.96], [101.0, 40.75], [100.75, 40.85], [100.68, 40.82], [100.53, 40.47], [100.0, 40.25], [99.47, 40.47], [99.25, 41.0], [99.35, 41.25], [99.25, 41.5], [99.35, 41.75], [99.32, 41.82], [98.97, 41.97], [98.82, 42.32], [98.47, 42.47], [98.25, 43.0]]]]}, "2010-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 43.0], [98.47, 43.53], [99.0, 43.75], [99.25, 43.65], [99.5, 43.75], [100.03, 43.53], [100.18, 43.18], [100.25, 43.15], [100.5, 43.25], [101.03, 43.03], [101.18, 42.68], [101.25, 42.65], [101.5, 42.75], [101.75, 42.65], [102.0, 42.75], [102.3, 42.63], [102.47, 43.03], [103.0, 43.25], [103.25, 43.15], [103.5, 43.25], [104.03, 43.03], [104.25, 42.5], [104.15, 42.25], [104.18, 42.18], [104.25, 42.15], [104.5, 42.25], [104.75, 42.15], [105.0, 42.25], [105.25, 42.15], [105.32, 42.18], [105.35, 42.25], [105.25, 42.5], [105.47, 43.03], [106.0, 43.25], [106.25, 43.15], [106.5, 43.25], [107.03, 43.03], [107.25, 42.5], [107.03, 41.97], [106.68, 41.82], [106.53, 41.47], [106.18, 41.32], [106.15, 41.25], [106.25, 41.0], [106.03, 40.47], [105.5, 40.25], [105.25, 40.35], [105.0, 40.25], [104.75, 40.35], [104.5, 40.25], [104.25, 40.35], [104.0, 40.25], [103.75, 40.35], [103.5, 40.25], [102.97, 40.47], [102.82, 40.82], [102.75, 40.85], [102.5, 40.75], [102.25, 40.85], [102.0, 40.75], [101.5, 40.96], [101.0, 40.75], [100.75, 40.85], [100.68, 40.82], [100.53, 40.47], [100.0, 40.25], [99.47, 40.47], [99.25, 41.0], [99.35, 41.25], [99.25, 41.5], [99.35, 41.75], [99.32, 41.82], [98.97, 41.97], [98.82, 42.32], [98.47, 42.47], [98.25, 43.0]]]]}, "2010-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 43.0], [98.47, 43.53], [99.0, 43.75], [99.25, 43.65], [99.5, 43.75], [100.03, 43.53], [100.18, 43.18], [100.25, 43.15], [100.5, 43.25], [101.03, 43.03], [101.18, 42.68], [101.25, 42.65], [101.5, 42.75], [101.75, 42.65], [102.0, 42.75], [102.3, 42.63], [102.47, 43.03], [103.0, 43.25], [103.25, 43.15], [103.5, 43.25], [104.03, 43.03], [104.25, 42.5], [104.15, 42.25], [104.18, 42.18], [104.25, 42.15], [104.5, 42.25], [104.75, 42.15], [105.0, 42.25], [105.25, 42.15], [105.32, 42.18], [105.35, 42.25], [105.25, 42.5], [105.47, 43.03], [106.0, 43.25], [106.25, 43.15], [106.5, 43.25], [107.03, 43.03], [107.25, 42.5], [107.03, 41.97], [106.68, 41.82], [106.53, 41.47], [106.18, 41.32], [106.15, 41.25], [106.25, 41.0], [106.03, 40.47], [105.5, 40.25], [105.25, 40.35], [105.0, 40.25], [104.75, 40.35], [104.5, 40.25], [104.25, 40.35], [104.0, 40.25], [103.75, 40.35], [103.5, 40.25], [102.97, 40.47], [102.82, 40.82], [102.75, 40.85], [102.5, 40.75], [102.25, 40.85], [102.0, 40.75], [101.5, 40.96], [101.0, 40.75], [100.75, 40.85], [100.68, 40.82], [100.53, 40.47], [100.0, 40.25], [99.47, 40.47], [99.25, 41.0], [99.35, 41.25], [99.25, 41.5], [99.35, 41.75], [99.32, 41.82], [98.97, 41.97], [98.82, 42.32], [98.47, 42.47], [98.25, 43.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.644189476851238}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.533773251395795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-4.25234656830969, -4.117779452157663, -3.1302004526684755, -2.861826148665955]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.627396141423503, -2.700010792916146, 0.35512697186868536, -1.1652528768143497]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.728089802609681, 5.716041562723695, 6.840697036685176, 7.239898354484232]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.31470970521309, 7.186005981613732, 8.537819249391475, 8.644189476851238]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.487989641683611, 1.5039699170695893, 1.7429392579996792, 1.7735269156101552]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.656943022617271, 1.891360841967409, 2.116856808650338, 2.1278824023559717]}}