{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:13.444768", "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-Feb-05_to_2023-Feb-11_110.5_-2.5"}, "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": 2023020001496}, "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 05 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 11 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 117247.31301123905}, "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": ["Indonesia"]}, "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": ["Java Sea", "South China Sea"]}, "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": -2.5}, "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": 110.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "110.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[112.5, -2.75], [112.75, -2.85], [113.0, -2.75], [113.53, -2.97], [113.68, -3.32], [114.03, -3.47], [114.18, -3.82], [114.25, -3.85], [114.5, -3.75], [115.03, -3.97], [115.25, -4.5], [115.15, -4.75], [115.25, -5.0], [115.03, -5.53], [114.5, -5.75], [113.97, -5.53], [113.82, -5.18], [113.75, -5.15], [113.68, -5.18], [113.53, -5.53], [113.0, -5.75], [112.75, -5.65], [112.5, -5.75], [112.25, -5.65], [112.0, -5.75], [111.47, -5.53], [111.32, -5.18], [110.97, -5.03], [110.82, -4.68], [110.47, -4.53], [110.32, -4.18], [110.25, -4.15], [110.0, -4.25], [109.47, -4.03], [109.25, -3.5], [109.38, -3.2], [108.97, -3.03], [108.75, -2.5], [108.88, -2.2], [108.47, -2.03], [108.32, -1.68], [107.97, -1.53], [107.75, -1.0], [107.85, -0.75], [107.75, -0.5], [107.85, -0.25], [107.75, 0.0], [107.97, 0.53], [108.5, 0.75], [108.75, 0.65], [109.0, 0.75], [109.53, 0.53], [109.75, 0.0], [109.65, -0.25], [109.68, -0.32], [110.03, -0.47], [110.25, -1.0], [110.15, -1.25], [110.18, -1.32], [110.53, -1.47], [110.68, -1.82], [110.75, -1.85], [111.0, -1.75], [111.53, -1.97], [111.68, -2.32], [112.03, -2.47], [112.18, -2.82], [112.25, -2.85], [112.5, -2.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.75, -4.5], [110.97, -3.97], [111.32, -3.82], [111.35, -3.75], [111.25, -3.5], [111.47, -2.97], [112.0, -2.75], [112.53, -2.97], [112.68, -3.32], [112.75, -3.35], [113.0, -3.25], [113.25, -3.35], [113.5, -3.25], [114.03, -3.47], [114.18, -3.82], [114.25, -3.85], [114.5, -3.75], [115.03, -3.97], [115.25, -4.5], [115.15, -4.75], [115.25, -5.0], [115.03, -5.53], [114.5, -5.75], [113.97, -5.53], [113.82, -5.18], [113.75, -5.15], [113.68, -5.18], [113.53, -5.53], [113.0, -5.75], [112.75, -5.65], [112.5, -5.75], [112.25, -5.65], [112.0, -5.75], [111.47, -5.53], [111.32, -5.18], [110.97, -5.03], [110.75, -4.5]]], [[[110.0, -4.25], [109.47, -4.03], [109.25, -3.5], [109.47, -2.97], [110.0, -2.75], [110.53, -2.97], [110.75, -3.5], [110.53, -4.03], [110.0, -4.25]]]]}, "2023-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.47, -1.47], [110.0, -1.25], [110.53, -1.47], [110.75, -2.0], [110.65, -2.25], [110.75, -2.5], [110.63, -2.8], [110.8, -2.87], [110.97, -2.47], [111.5, -2.25], [112.03, -2.47], [112.18, -2.82], [112.25, -2.85], [112.5, -2.75], [112.75, -2.85], [113.0, -2.75], [113.53, -2.97], [113.68, -3.32], [114.03, -3.47], [114.18, -3.82], [114.25, -3.85], [114.5, -3.75], [115.03, -3.97], [115.25, -4.5], [115.15, -4.75], [115.25, -5.0], [115.03, -5.53], [114.5, -5.75], [113.97, -5.53], [113.82, -5.18], [113.75, -5.15], [113.68, -5.18], [113.53, -5.53], [113.0, -5.75], [112.75, -5.65], [112.5, -5.75], [112.25, -5.65], [112.0, -5.75], [111.47, -5.53], [111.32, -5.18], [110.97, -5.03], [110.82, -4.68], [110.47, -4.53], [110.32, -4.18], [110.25, -4.15], [110.0, -4.25], [109.47, -4.03], [109.25, -3.5], [109.38, -3.2], [108.97, -3.03], [108.75, -2.5], [108.97, -1.97], [109.32, -1.82], [109.47, -1.47]]]]}, "2023-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.75, -0.5], [107.85, -0.25], [107.75, 0.0], [107.97, 0.53], [108.5, 0.75], [109.03, 0.53], [109.18, 0.18], [109.53, 0.03], [109.75, -0.5], [109.65, -0.75], [109.75, -1.0], [109.65, -1.25], [109.7, -1.37], [110.0, -1.25], [110.53, -1.47], [110.68, -1.82], [111.03, -1.97], [111.18, -2.32], [111.25, -2.35], [111.5, -2.25], [112.03, -2.47], [112.18, -2.82], [112.25, -2.85], [112.5, -2.75], [112.75, -2.85], [113.0, -2.75], [113.53, -2.97], [113.68, -3.32], [114.03, -3.47], [114.18, -3.82], [114.25, -3.85], [114.5, -3.75], [115.03, -3.97], [115.25, -4.5], [115.15, -4.75], [115.25, -5.0], [115.03, -5.53], [114.5, -5.75], [113.97, -5.53], [113.82, -5.18], [113.75, -5.15], [113.68, -5.18], [113.53, -5.53], [113.0, -5.75], [112.75, -5.65], [112.5, -5.75], [112.25, -5.65], [112.0, -5.75], [111.47, -5.53], [111.32, -5.18], [110.97, -5.03], [110.82, -4.68], [110.47, -4.53], [110.32, -4.18], [110.25, -4.15], [110.0, -4.25], [109.47, -4.03], [109.25, -3.5], [109.38, -3.2], [108.97, -3.03], [108.75, -2.5], [108.88, -2.2], [108.47, -2.03], [108.32, -1.68], [107.97, -1.53], [107.75, -1.0], [107.85, -0.75], [107.75, -0.5]]]]}, "2023-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.75, -0.5], [107.85, -0.25], [107.75, 0.0], [107.97, 0.53], [108.5, 0.75], [108.75, 0.65], [109.0, 0.75], [109.53, 0.53], [109.75, 0.0], [109.65, -0.25], [109.68, -0.32], [110.03, -0.47], [110.25, -1.0], [110.15, -1.25], [110.18, -1.32], [110.53, -1.47], [110.68, -1.82], [111.03, -1.97], [111.18, -2.32], [111.25, -2.35], [111.5, -2.25], [112.03, -2.47], [112.18, -2.82], [112.25, -2.85], [112.5, -2.75], [112.75, -2.85], [113.0, -2.75], [113.53, -2.97], [113.68, -3.32], [114.03, -3.47], [114.18, -3.82], [114.53, -3.97], [114.75, -4.5], [114.53, -5.03], [114.0, -5.25], [113.75, -5.15], [113.5, -5.25], [113.25, -5.15], [113.0, -5.25], [112.75, -5.15], [112.68, -5.18], [112.53, -5.53], [112.0, -5.75], [111.47, -5.53], [111.32, -5.18], [110.97, -5.03], [110.82, -4.68], [110.47, -4.53], [110.32, -4.18], [109.97, -4.03], [109.75, -3.5], [109.88, -3.2], [109.75, -3.15], [109.5, -3.25], [108.97, -3.03], [108.75, -2.5], [108.88, -2.2], [108.47, -2.03], [108.32, -1.68], [107.97, -1.53], [107.75, -1.0], [107.85, -0.75], [107.75, -0.5]]]]}, "2023-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.75, -0.5], [107.85, -0.25], [107.75, 0.0], [107.97, 0.53], [108.5, 0.75], [108.75, 0.65], [109.0, 0.75], [109.53, 0.53], [109.75, 0.0], [109.65, -0.25], [109.68, -0.32], [110.03, -0.47], [110.25, -1.0], [110.15, -1.25], [110.18, -1.32], [110.53, -1.47], [110.68, -1.82], [110.75, -1.85], [111.0, -1.75], [111.53, -1.97], [111.75, -2.5], [111.65, -2.75], [111.75, -3.0], [111.53, -3.53], [111.0, -3.75], [110.47, -3.53], [110.32, -3.18], [110.25, -3.15], [110.0, -3.25], [109.47, -3.03], [109.25, -2.5], [109.35, -2.25], [109.32, -2.18], [109.25, -2.15], [109.0, -2.25], [108.47, -2.03], [108.32, -1.68], [107.97, -1.53], [107.75, -1.0], [107.85, -0.75], [107.75, -0.5]]]]}, "2023-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.75, -0.5], [107.85, -0.25], [107.75, 0.0], [107.97, 0.53], [108.5, 0.75], [108.75, 0.65], [109.0, 0.75], [109.53, 0.53], [109.75, 0.0], [109.65, -0.25], [109.68, -0.32], [110.03, -0.47], [110.25, -1.0], [110.15, -1.25], [110.18, -1.32], [110.53, -1.47], [110.68, -1.82], [110.75, -1.85], [111.0, -1.75], [111.53, -1.97], [111.75, -2.5], [111.65, -2.75], [111.75, -3.0], [111.53, -3.53], [111.0, -3.75], [110.47, -3.53], [110.32, -3.18], [110.25, -3.15], [110.0, -3.25], [109.47, -3.03], [109.25, -2.5], [109.35, -2.25], [109.32, -2.18], [109.25, -2.15], [109.0, -2.25], [108.47, -2.03], [108.32, -1.68], [107.97, -1.53], [107.75, -1.0], [107.85, -0.75], [107.75, -0.5]]]]}, "2023-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, -1.0], [108.35, -0.75], [108.25, -0.5], [108.35, -0.25], [108.25, 0.0], [108.47, 0.53], [109.0, 0.75], [109.53, 0.53], [109.75, 0.0], [109.65, -0.25], [109.68, -0.32], [110.03, -0.47], [110.25, -1.0], [110.15, -1.25], [110.18, -1.32], [110.53, -1.47], [110.68, -1.82], [110.75, -1.85], [111.0, -1.75], [111.53, -1.97], [111.75, -2.5], [111.65, -2.75], [111.75, -3.0], [111.53, -3.53], [111.0, -3.75], [110.47, -3.53], [110.32, -3.18], [109.97, -3.03], [109.82, -2.68], [109.47, -2.53], [109.32, -2.18], [109.25, -2.15], [109.0, -2.25], [108.47, -2.03], [108.25, -1.5], [108.35, -1.25], [108.25, -1.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9249489181587478}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9543999378189653}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.64162862944903, 27.766922633789477, 27.85720669585669, 27.803134151376298, 27.62817117512344, 27.885787297060233, 27.667072530351845]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.78003650140397, 27.987632658534096, 28.356064287609, 28.133701598315326, 28.066720076293564, 28.638424328306485, 28.253696301122943]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8222841841935165, 0.9317994658838831, 1.0178090732283702, 0.9387346312868523, 0.8944244675172602, 1.1142808853595665, 0.932428198389772]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9508568653089924, 1.1303925909803638, 1.4396394857484438, 1.2852748962112628, 1.2867511352748693, 1.9249489181587478, 1.588998061340476]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4732279668634927, 1.6508442796265588, 1.7229530734163487, 1.6200819279205816, 1.6060038088953341, 1.9582774855351102, 1.5852680365120473]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6481209205700025, 2.0418458786081026, 2.2310745193378256, 2.147073661120987, 1.8672591503973597, 2.56472307918761, 1.9906345574323434]}}