{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:21.577846", "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": "2023-Sep-10_to_2023-Sep-18_105.0_36.0"}, "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": 2023090001288}, "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": "September 10 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 217105.07053090146}, "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"]}, "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": 36.0}, "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": 105.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 100.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [105.25, 33.85], [105.0, 33.75], [104.47, 33.97], [104.32, 34.32], [104.25, 34.35], [104.0, 34.25], [103.47, 34.47], [103.32, 34.82], [102.97, 34.97], [102.82, 35.32], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.85, 36.75], [102.82, 36.82], [102.47, 36.97], [102.25, 37.5], [102.35, 37.75], [102.32, 37.82], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75], [100.97, 37.97], [100.82, 38.32], [100.75, 38.35], [100.5, 38.25], [100.25, 38.35], [100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.35, 39.25], [99.25, 39.5], [99.47, 40.03], [99.82, 40.18], [99.97, 40.53], [100.5, 40.75], [100.75, 40.65], [101.0, 40.75], [101.25, 40.65], [101.5, 40.75], [101.75, 40.65], [102.0, 40.75], [102.25, 40.65], [102.5, 40.75], [102.75, 40.65], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [103.75, 40.65], [104.0, 40.75], [104.25, 40.65], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.5, 40.04], [106.0, 40.25], [106.53, 40.03], [106.75, 39.5], [106.65, 39.25], [106.75, 39.0], [106.65, 38.75], [106.75, 38.5], [106.65, 38.25], [106.68, 38.18], [107.03, 38.03], [107.25, 37.5], [107.15, 37.25], [107.25, 37.0], [107.15, 36.75], [107.25, 36.5], [107.03, 35.97], [106.68, 35.82], [106.53, 35.47], [106.13, 35.3], [106.25, 35.0], [106.15, 34.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.75, 40.0], [102.97, 40.53], [103.5, 40.75], [104.03, 40.53], [104.25, 40.0], [104.04, 39.5], [104.25, 39.0], [104.03, 38.47], [103.5, 38.25], [102.97, 38.47], [102.75, 39.0], [102.96, 39.5], [102.75, 40.0]]]]}, "2023-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 39.5], [99.47, 40.03], [99.82, 40.18], [99.97, 40.53], [100.5, 40.75], [100.75, 40.65], [101.0, 40.75], [101.25, 40.65], [101.5, 40.75], [101.75, 40.65], [102.0, 40.75], [102.25, 40.65], [102.5, 40.75], [102.75, 40.65], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [104.03, 40.53], [104.25, 40.0], [104.15, 39.75], [104.25, 39.5], [104.15, 39.25], [104.25, 39.0], [104.03, 38.47], [103.5, 38.25], [102.97, 38.47], [102.82, 38.82], [102.75, 38.85], [102.68, 38.82], [102.53, 38.47], [102.0, 38.25], [101.47, 38.47], [101.32, 38.82], [101.25, 38.85], [101.0, 38.75], [100.7, 38.88], [100.53, 38.47], [100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.35, 39.25], [99.25, 39.5]]]]}, "2023-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 35.47], [103.75, 36.0], [103.97, 36.53], [104.5, 36.75], [104.75, 36.65], [104.82, 36.68], [104.97, 37.03], [105.5, 37.25], [106.03, 37.03], [106.25, 36.5], [106.15, 36.25], [106.25, 36.0], [106.03, 35.47], [105.5, 35.25], [105.25, 35.35], [105.0, 35.25], [104.75, 35.35], [104.5, 35.25], [103.97, 35.47]]], [[[99.47, 40.03], [99.82, 40.18], [99.97, 40.53], [100.5, 40.75], [100.75, 40.65], [101.0, 40.75], [101.25, 40.65], [101.5, 40.75], [101.75, 40.65], [102.0, 40.75], [102.25, 40.65], [102.5, 40.75], [102.75, 40.65], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [104.0, 40.54], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.5, 40.04], [106.0, 40.25], [106.53, 40.03], [106.75, 39.5], [106.65, 39.25], [106.75, 39.0], [106.53, 38.47], [106.18, 38.32], [106.03, 37.97], [105.5, 37.75], [105.25, 37.85], [105.0, 37.75], [104.75, 37.85], [104.5, 37.75], [104.25, 37.85], [104.0, 37.75], [103.75, 37.85], [103.5, 37.75], [103.25, 37.85], [103.0, 37.75], [102.75, 37.85], [102.5, 37.75], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75], [100.97, 37.97], [100.82, 38.32], [100.75, 38.35], [100.5, 38.25], [100.25, 38.35], [100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.35, 39.25], [99.25, 39.5], [99.47, 40.03]]]]}, "2023-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 39.5], [99.47, 40.03], [99.82, 40.18], [99.97, 40.53], [100.5, 40.75], [100.75, 40.65], [101.0, 40.75], [101.25, 40.65], [101.5, 40.75], [101.75, 40.65], [102.0, 40.75], [102.25, 40.65], [102.5, 40.75], [102.75, 40.65], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [103.75, 40.65], [104.0, 40.75], [104.25, 40.65], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.5, 40.04], [106.0, 40.25], [106.53, 40.03], [106.75, 39.5], [106.65, 39.25], [106.75, 39.0], [106.65, 38.75], [106.75, 38.5], [106.65, 38.25], [106.68, 38.18], [107.03, 38.03], [107.25, 37.5], [107.15, 37.25], [107.25, 37.0], [107.03, 36.47], [106.68, 36.32], [106.65, 36.25], [106.75, 36.0], [106.53, 35.47], [106.13, 35.3], [106.25, 35.0], [106.03, 34.47], [105.5, 34.25], [104.97, 34.47], [104.82, 34.82], [104.75, 34.85], [104.5, 34.75], [104.25, 34.85], [104.0, 34.75], [103.47, 34.97], [103.32, 35.32], [103.25, 35.35], [103.0, 35.25], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.85, 36.75], [102.82, 36.82], [102.47, 36.97], [102.25, 37.5], [102.35, 37.75], [102.32, 37.82], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75], [100.97, 37.97], [100.82, 38.32], [100.75, 38.35], [100.5, 38.25], [100.25, 38.35], [100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.35, 39.25], [99.25, 39.5]]]]}, "2023-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.47, 39.53], [100.0, 39.75], [100.25, 39.65], [100.5, 39.75], [100.75, 39.65], [101.0, 39.75], [101.25, 39.65], [101.5, 39.75], [101.75, 39.65], [101.82, 39.68], [101.97, 40.03], [102.32, 40.18], [102.47, 40.53], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [103.75, 40.65], [104.0, 40.75], [104.25, 40.65], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.5, 40.04], [106.0, 40.25], [106.53, 40.03], [106.75, 39.5], [106.65, 39.25], [106.75, 39.0], [106.65, 38.75], [106.75, 38.5], [106.65, 38.25], [106.68, 38.18], [107.03, 38.03], [107.25, 37.5], [107.15, 37.25], [107.25, 37.0], [107.15, 36.75], [107.25, 36.5], [107.03, 35.97], [106.68, 35.82], [106.53, 35.47], [106.13, 35.3], [106.25, 35.0], [106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [105.25, 33.85], [105.0, 33.75], [104.47, 33.97], [104.32, 34.32], [104.25, 34.35], [104.0, 34.25], [103.47, 34.47], [103.32, 34.82], [102.97, 34.97], [102.82, 35.32], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.85, 36.75], [102.82, 36.82], [102.47, 36.97], [102.25, 37.5], [102.35, 37.75], [102.32, 37.82], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75], [100.97, 37.97], [100.82, 38.32], [100.75, 38.35], [100.5, 38.25], [100.25, 38.35], [100.0, 38.25]]]]}, "2023-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.0, 38.25], [99.47, 38.47], [99.25, 39.0], [99.47, 39.53], [100.0, 39.75], [100.25, 39.65], [100.5, 39.75], [100.75, 39.65], [101.0, 39.75], [101.25, 39.65], [101.5, 39.75], [101.75, 39.65], [101.82, 39.68], [101.97, 40.03], [102.32, 40.18], [102.47, 40.53], [103.0, 40.75], [103.25, 40.65], [103.5, 40.75], [103.75, 40.65], [104.0, 40.75], [104.25, 40.65], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.53, 40.03], [105.7, 39.63], [106.0, 39.75], [106.53, 39.53], [106.75, 39.0], [106.65, 38.75], [106.75, 38.5], [106.65, 38.25], [106.68, 38.18], [107.03, 38.03], [107.25, 37.5], [107.15, 37.25], [107.25, 37.0], [107.15, 36.75], [107.25, 36.5], [107.03, 35.97], [106.68, 35.82], [106.53, 35.47], [106.13, 35.3], [106.25, 35.0], [106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [105.25, 33.85], [105.0, 33.75], [104.47, 33.97], [104.32, 34.32], [104.25, 34.35], [104.0, 34.25], [103.47, 34.47], [103.32, 34.82], [102.97, 34.97], [102.82, 35.32], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.85, 36.75], [102.82, 36.82], [102.47, 36.97], [102.25, 37.5], [102.35, 37.75], [102.32, 37.82], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75], [100.97, 37.97], [100.82, 38.32], [100.75, 38.35], [100.5, 38.25], [100.25, 38.35], [100.0, 38.25]]]]}, "2023-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.5, 37.75], [100.97, 37.97], [100.75, 38.5], [100.97, 39.03], [101.5, 39.25], [101.75, 39.15], [101.82, 39.18], [101.85, 39.25], [101.75, 39.5], [101.97, 40.03], [102.5, 40.25], [102.75, 40.15], [102.82, 40.18], [102.97, 40.53], [103.5, 40.75], [103.75, 40.65], [104.0, 40.75], [104.25, 40.65], [104.5, 40.75], [105.03, 40.53], [105.18, 40.18], [105.53, 40.03], [105.7, 39.63], [106.0, 39.75], [106.53, 39.53], [106.75, 39.0], [106.65, 38.75], [106.75, 38.5], [106.65, 38.25], [106.68, 38.18], [107.03, 38.03], [107.25, 37.5], [107.15, 37.25], [107.25, 37.0], [107.15, 36.75], [107.25, 36.5], [107.03, 35.97], [106.68, 35.82], [106.53, 35.47], [106.13, 35.3], [106.25, 35.0], [106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [105.25, 33.85], [105.0, 33.75], [104.47, 33.97], [104.32, 34.32], [104.25, 34.35], [104.0, 34.25], [103.47, 34.47], [103.32, 34.82], [102.97, 34.97], [102.82, 35.32], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.85, 36.75], [102.82, 36.82], [102.47, 36.97], [102.25, 37.5], [102.35, 37.75], [102.32, 37.82], [102.25, 37.85], [102.0, 37.75], [101.75, 37.85], [101.5, 37.75]]]]}, "2023-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.97, 37.03], [103.5, 37.25], [103.75, 37.15], [104.0, 37.25], [104.25, 37.15], [104.5, 37.25], [105.03, 37.03], [105.18, 36.68], [105.25, 36.65], [105.5, 36.75], [106.03, 36.53], [106.25, 36.0], [106.04, 35.5], [106.25, 35.0], [106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [104.97, 33.97], [104.82, 34.32], [104.75, 34.35], [104.5, 34.25], [103.97, 34.47], [103.75, 35.0], [103.85, 35.25], [103.82, 35.32], [103.5, 35.46], [103.0, 35.25], [102.47, 35.47], [102.25, 36.0], [102.47, 36.53], [102.82, 36.68], [102.97, 37.03]]]]}, "2023-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, 35.5], [103.97, 36.03], [104.32, 36.18], [104.47, 36.53], [105.0, 36.75], [105.25, 36.65], [105.5, 36.75], [106.03, 36.53], [106.25, 36.0], [106.04, 35.5], [106.25, 35.0], [106.15, 34.75], [106.25, 34.5], [106.03, 33.97], [105.5, 33.75], [104.97, 33.97], [104.82, 34.32], [104.75, 34.35], [104.5, 34.25], [103.97, 34.47], [103.75, 35.0], [103.85, 35.25], [103.75, 35.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.615746903230502}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.867968978201838}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.86490926576414, 21.967085779460945, 21.476919693587604, 21.54336313819192, 20.355252846056715, 19.87430201608953, 21.016277896801853, 17.459933733324306, 17.439434007467355]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.81722490703993, 23.67024347110106, 24.069813595707103, 24.982870342931108, 24.207301856465733, 23.062798323807044, 25.1410557612233, 18.867106686500335, 18.637138269460877]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.644760345531466, 4.369619095435255, 4.598442257188298, 5.261434558619369, 4.643693307217328, 4.464655530063575, 5.802267574705038, 3.346313828587374, 3.7048953224576806]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.657946788135575, 4.782709456911903, 5.4606080158856685, 7.135172832837668, 6.693892320308009, 5.810825883251255, 7.615746903230502, 3.829745790768925, 4.203563185047642]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2349028493758565, 1.250883697211662, 1.4156680583168837, 1.7619533746604552, 1.6021455786115069, 1.5108908439844773, 1.9619330089578568, 1.340562506501402, 1.595862691143843]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.259519386071402, 1.3399931071432463, 1.6420114959515777, 2.2013872940273957, 2.172609012089058, 1.9130041830083018, 2.5695462699034715, 1.539805027767223, 1.7622439687415559]}}