{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:45.232099", "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": "2026-Mar-11_to_2026-Mar-16_100.5_9.5"}, "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": 2026030000368}, "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": "March 11 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 16 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 91192.47471094299}, "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": ["Myanmar", "Thailand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 9.5}, "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": 100.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.5\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": 103.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[98.97, 12.53], [99.5, 12.75], [100.03, 12.53], [100.2, 12.13], [100.5, 12.25], [100.75, 12.15], [101.0, 12.25], [101.53, 12.03], [101.68, 11.68], [102.03, 11.53], [102.18, 11.18], [102.25, 11.15], [102.5, 11.25], [102.75, 11.15], [103.0, 11.25], [103.25, 11.15], [103.5, 11.25], [104.03, 11.03], [104.25, 10.5], [104.03, 9.97], [103.5, 9.75], [103.25, 9.85], [103.18, 9.82], [103.03, 9.47], [102.5, 9.25], [102.25, 9.35], [102.18, 9.32], [102.03, 8.97], [101.5, 8.75], [101.25, 8.85], [101.18, 8.82], [101.03, 8.47], [100.5, 8.25], [99.97, 8.47], [99.82, 8.82], [99.47, 8.97], [99.32, 9.32], [98.97, 9.47], [98.75, 10.0], [98.85, 10.25], [98.75, 10.5], [98.85, 10.75], [98.82, 10.82], [98.47, 10.97], [98.25, 11.5], [98.47, 12.03], [98.82, 12.18], [98.97, 12.53]]]]}}, "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": {"2026-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.47, 10.97], [98.25, 11.5], [98.47, 12.03], [99.0, 12.25], [99.53, 12.03], [99.68, 11.68], [99.75, 11.65], [99.82, 11.68], [99.97, 12.03], [100.5, 12.25], [100.75, 12.15], [101.0, 12.25], [101.53, 12.03], [101.68, 11.68], [102.03, 11.53], [102.18, 11.18], [102.25, 11.15], [102.5, 11.25], [102.75, 11.15], [103.0, 11.25], [103.25, 11.15], [103.5, 11.25], [104.03, 11.03], [104.25, 10.5], [104.03, 9.97], [103.5, 9.75], [103.25, 9.85], [103.18, 9.82], [103.03, 9.47], [102.5, 9.25], [102.25, 9.35], [102.18, 9.32], [102.03, 8.97], [101.5, 8.75], [101.25, 8.85], [101.18, 8.82], [101.03, 8.47], [100.5, 8.25], [99.97, 8.47], [99.82, 8.82], [99.47, 8.97], [99.32, 9.32], [98.97, 9.47], [98.75, 10.0], [98.85, 10.25], [98.75, 10.5], [98.85, 10.75], [98.82, 10.82], [98.47, 10.97]]]]}, "2026-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.47, 10.97], [98.25, 11.5], [98.47, 12.03], [98.82, 12.18], [98.97, 12.53], [99.5, 12.75], [100.03, 12.53], [100.2, 12.13], [100.5, 12.25], [100.75, 12.15], [101.0, 12.25], [101.53, 12.03], [101.68, 11.68], [102.03, 11.53], [102.18, 11.18], [102.25, 11.15], [102.5, 11.25], [102.75, 11.15], [103.0, 11.25], [103.25, 11.15], [103.5, 11.25], [104.03, 11.03], [104.25, 10.5], [104.03, 9.97], [103.5, 9.75], [103.25, 9.85], [103.18, 9.82], [103.03, 9.47], [102.5, 9.25], [102.25, 9.35], [102.18, 9.32], [102.03, 8.97], [101.5, 8.75], [101.25, 8.85], [101.18, 8.82], [101.03, 8.47], [100.5, 8.25], [99.97, 8.47], [99.82, 8.82], [99.47, 8.97], [99.32, 9.32], [98.97, 9.47], [98.75, 10.0], [98.85, 10.25], [98.75, 10.5], [98.85, 10.75], [98.82, 10.82], [98.47, 10.97]]]]}, "2026-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.47, 10.97], [98.25, 11.5], [98.47, 12.03], [98.82, 12.18], [98.97, 12.53], [99.5, 12.75], [100.03, 12.53], [100.2, 12.13], [100.5, 12.25], [100.75, 12.15], [101.0, 12.25], [101.53, 12.03], [101.68, 11.68], [102.03, 11.53], [102.18, 11.18], [102.25, 11.15], [102.5, 11.25], [102.75, 11.15], [103.0, 11.25], [103.25, 11.15], [103.5, 11.25], [104.03, 11.03], [104.25, 10.5], [104.03, 9.97], [103.5, 9.75], [103.25, 9.85], [103.18, 9.82], [103.03, 9.47], [102.5, 9.25], [102.25, 9.35], [102.18, 9.32], [102.03, 8.97], [101.5, 8.75], [101.25, 8.85], [101.18, 8.82], [101.03, 8.47], [100.5, 8.25], [99.97, 8.47], [99.82, 8.82], [99.47, 8.97], [99.32, 9.32], [98.97, 9.47], [98.75, 10.0], [98.85, 10.25], [98.75, 10.5], [98.85, 10.75], [98.82, 10.82], [98.47, 10.97]]]]}, "2026-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.5, 8.75], [99.97, 8.97], [99.75, 9.5], [99.97, 10.03], [100.5, 10.25], [101.03, 10.03], [101.25, 9.5], [101.03, 8.97], [100.5, 8.75]]], [[[99.5, 11.25], [98.97, 11.47], [98.75, 12.0], [98.97, 12.53], [99.5, 12.75], [100.03, 12.53], [100.25, 12.0], [100.03, 11.47], [99.5, 11.25]]]]}, "2026-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 10.03], [100.5, 10.25], [101.03, 10.03], [101.25, 9.5], [101.03, 8.97], [100.5, 8.75], [99.97, 8.97], [99.75, 9.5], [99.97, 10.03]]]]}, "2026-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 10.03], [100.5, 10.25], [101.03, 10.03], [101.25, 9.5], [101.03, 8.97], [100.5, 8.75], [99.97, 8.97], [99.75, 9.5], [99.97, 10.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.2904120654341114}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1892234370651473}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.490467808164397, 26.19444062974725, 26.17921837700743, 25.76048685709634, 26.65780156453451, 26.384150441487634]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.089841461181663, 23.902974700927757, 24.225974019368493, 24.730620320638025, 26.65780156453451, 26.384150441487634]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9800544607959272, -1.2688560582133979, -1.3262571944668802, -1.0572224408893476, -0.9530664121000996, -1.2552914096896757]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3117244162997395, -2.023227517928376, -2.2904120654341114, -1.3421754820919887, -0.9530664121000996, -1.2552914096896757]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5860647909834102, -2.062528546836505, -2.124583958963796, -1.2089095389083642, -1.5713658055686723, -2.0944067940377717]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1411008364736617, -3.1795645612350976, -3.5043328832109166, -1.2594880111764446, -1.5713658055686723, -2.0944067940377717]}}