{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:20.576011", "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": "2020-May-13_to_2020-May-17_59.5_22.5"}, "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": 2020050000345}, "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": "May 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 51663.76897761746}, "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": ["Oman"]}, "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": ["Arabian 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": 22.5}, "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": 59.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 57.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 60.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[56.47, 21.53], [56.823, 21.677], [56.97, 22.03], [57.323, 22.177], [57.47, 22.53], [58.0, 22.75], [58.25, 22.646], [58.375, 22.698], [58.25, 23.0], [58.47, 23.53], [59.0, 23.75], [59.25, 23.646], [59.5, 23.75], [59.75, 23.646], [60.0, 23.75], [60.53, 23.53], [60.75, 23.0], [60.646, 22.75], [60.75, 22.5], [60.53, 21.97], [60.177, 21.823], [60.03, 21.47], [59.625, 21.302], [59.75, 21.0], [59.53, 20.47], [59.0, 20.25], [58.75, 20.354], [58.5, 20.25], [58.25, 20.354], [58.177, 20.323], [58.03, 19.97], [57.5, 19.75], [56.97, 19.97], [56.823, 20.323], [56.47, 20.47], [56.25, 21.0], [56.47, 21.53]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia", "Arabian-Peninsula", "S.Asia", "Arabian-Sea"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-13T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[58.82322330470336, 22.32322330470336], [58.46966991411009, 22.46966991411009], [58.25, 23.0], [58.46966991411009, 23.53033008588991], [59.0, 23.75], 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"description": "The daily evolution of mean t2m anomalies.", "value": [-2.232193597042586, -2.6062323110163863, -2.8979098158566563, -2.8757524584842713, -1.4303063404672685]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.664188711971974, -3.403341892817309, -4.076359189010475, -4.011951119519665, -1.4303063404672685]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.496133317752036, -1.6033786245921018, -1.8170008973811624, -1.8023324563820027, -1.3113533860977304]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5879307988142717, -2.016970923990237, -2.3742466497183226, -2.239112956516437, -1.3113533860977304]}}