{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:24.467061", "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": "2012-Jan-28_to_2012-Feb-13_41.5_-5.0"}, "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": 2012010001443}, "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": "January 28 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 17}, "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": 169274.5292572481}, "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": ["Kenya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Indian Ocean"]}, "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": -5.0}, "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": 41.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "41.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, -2.97], [39.82, -2.82], [39.97, -2.47], [40.5, -2.25], [41.03, -2.47], [41.25, -3.0], [41.15, -3.25], [41.25, -3.5], [41.03, -4.03], [40.68, -4.18], [40.53, -4.53], [40.0, -4.75], [39.47, -4.53], [39.25, -4.0], [39.35, -3.75], [39.25, -3.5], [39.47, -2.97]]]]}, "2012-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, -6.0], [38.47, -5.47], [38.82, -5.32], [38.85, -5.25], [38.75, -5.0], [38.97, -4.47], [39.32, -4.32], [39.35, -4.25], [39.25, -4.0], [39.35, -3.75], [39.25, -3.5], [39.35, -3.25], [39.25, -3.0], [39.47, -2.47], [40.0, -2.25], [40.25, -2.35], [40.5, -2.25], [41.03, -2.47], [41.18, -2.82], [41.53, -2.97], [41.68, -3.32], [41.75, -3.35], [42.0, -3.25], [42.53, -3.47], [42.68, -3.82], [43.03, -3.97], [43.25, -4.5], [43.15, -4.75], [43.25, -5.0], [43.03, -5.53], [42.68, -5.68], [42.53, -6.03], [42.18, -6.18], [42.03, -6.53], [41.5, -6.75], [40.97, -6.53], [40.82, -6.18], [40.75, -6.15], [40.5, -6.25], [40.25, -6.15], [40.13, -6.2], [40.25, -6.5], [40.03, -7.03], [39.5, -7.25], [38.97, -7.03], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0]]]]}, "2012-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, -6.0], [38.47, -5.47], [38.82, -5.32], [38.85, -5.25], [38.75, -5.0], [38.85, -4.75], [38.75, -4.5], [38.97, -3.97], [39.32, -3.82], [39.35, -3.75], [39.25, -3.5], [39.35, -3.25], [39.25, -3.0], [39.47, -2.47], [40.0, -2.25], [40.25, -2.35], [40.5, -2.25], [41.03, -2.47], [41.18, -2.82], [41.53, -2.97], [41.68, -3.32], [41.75, -3.35], [42.0, -3.25], [42.53, -3.47], [42.68, -3.82], [43.03, -3.97], [43.25, -4.5], [43.15, -4.75], [43.25, -5.0], [43.03, -5.53], [42.68, -5.68], [42.53, -6.03], [42.18, -6.18], [42.03, -6.53], [41.5, -6.75], [41.25, -6.65], [41.18, -6.68], [41.15, -6.75], [41.25, -7.0], [41.03, -7.53], [40.5, -7.75], [39.97, -7.53], [39.82, -7.18], [39.75, -7.15], [39.5, -7.25], [38.97, -7.03], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0]]]]}, "2012-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -4.97], [38.82, -4.82], [38.85, -4.75], [38.75, -4.5], [38.97, -3.97], [39.32, -3.82], [39.35, -3.75], [39.25, -3.5], [39.35, -3.25], [39.25, -3.0], [39.47, -2.47], [40.0, -2.25], [40.53, -2.47], [40.68, -2.82], [40.75, -2.85], [41.0, -2.75], [41.53, -2.97], [41.68, -3.32], [41.75, -3.35], [42.0, -3.25], [42.53, -3.47], [42.68, -3.82], [43.03, -3.97], [43.25, -4.5], [43.15, -4.75], [43.25, -5.0], [43.03, -5.53], [42.68, -5.68], [42.53, -6.03], [42.18, -6.18], [42.03, -6.53], [41.5, -6.75], [41.25, -6.65], [41.18, -6.68], [41.15, -6.75], [41.25, -7.0], [41.03, -7.53], [40.5, -7.75], [40.2, -7.62], [40.03, -8.03], [39.5, -8.25], [38.97, -8.03], [38.75, -7.5], [38.96, -7.0], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0], [38.35, -5.75], [38.25, -5.5], [38.47, -4.97]]]]}, "2012-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -4.97], [38.82, -4.82], [38.85, -4.75], [38.75, -4.5], [38.97, -3.97], [39.32, -3.82], [39.35, -3.75], [39.25, -3.5], [39.47, -2.97], [39.82, -2.82], [39.97, -2.47], [40.5, -2.25], [41.03, -2.47], [41.18, -2.82], [41.25, -2.85], [41.5, -2.75], [42.03, -2.97], [42.18, -3.32], [42.25, -3.35], [42.5, -3.25], [42.75, -3.35], [43.0, -3.25], [43.53, -3.47], [43.75, -4.0], [43.65, -4.25], [43.75, -4.5], [43.65, -4.75], [43.75, -5.0], [43.53, -5.53], [43.18, -5.68], [43.15, -5.75], [43.25, -6.0], [43.03, -6.53], [42.5, -6.75], [42.25, -6.65], [42.18, -6.68], [42.03, -7.03], [41.68, -7.18], [41.53, -7.53], [41.18, -7.68], [41.03, -8.03], [40.5, -8.25], [40.25, -8.15], [40.0, -8.25], [39.75, -8.15], [39.5, -8.25], [38.97, -8.03], [38.75, -7.5], [38.96, -7.0], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0], [38.35, -5.75], [38.25, -5.5], [38.47, -4.97]]]]}, "2012-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -4.97], [38.82, -4.82], [38.85, -4.75], [38.75, -4.5], [38.97, -3.97], [39.32, -3.82], [39.35, -3.75], [39.25, -3.5], [39.47, -2.97], [39.82, -2.82], [39.97, -2.47], [40.5, -2.25], [41.03, -2.47], [41.18, -2.82], [41.25, -2.85], [41.5, -2.75], [42.03, -2.97], [42.18, -3.32], [42.25, -3.35], [42.5, -3.25], [42.75, -3.35], [43.0, -3.25], [43.53, -3.47], [43.75, -4.0], [43.65, -4.25], [43.75, -4.5], [43.65, -4.75], [43.75, -5.0], [43.53, -5.53], [43.18, -5.68], [43.15, -5.75], [43.25, -6.0], [43.03, -6.53], [42.5, -6.75], [42.25, -6.65], [42.18, -6.68], [42.03, -7.03], [41.68, -7.18], [41.53, -7.53], [41.18, -7.68], [41.03, -8.03], [40.5, -8.25], [40.25, -8.15], [40.0, -8.25], [39.75, -8.15], [39.5, -8.25], [38.97, -8.03], [38.75, -7.5], [38.96, -7.0], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0], [38.35, -5.75], [38.25, -5.5], [38.47, -4.97]]]]}, "2012-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -4.97], [38.82, -4.82], [38.85, -4.75], [38.75, -4.5], [38.97, -3.97], [39.32, -3.82], [39.35, -3.75], [39.25, -3.5], [39.47, -2.97], [39.82, -2.82], [39.97, -2.47], [40.5, -2.25], [41.03, -2.47], [41.18, -2.82], [41.25, -2.85], [41.5, -2.75], [42.03, -2.97], [42.18, -3.32], [42.25, -3.35], [42.5, -3.25], [42.75, -3.35], [43.0, -3.25], [43.53, -3.47], [43.75, -4.0], [43.65, -4.25], [43.75, -4.5], [43.65, -4.75], [43.75, -5.0], [43.53, -5.53], [43.18, -5.68], [43.15, -5.75], [43.25, -6.0], [43.03, -6.53], [42.5, -6.75], [42.25, -6.65], [42.18, -6.68], [42.03, -7.03], [41.68, -7.18], [41.53, -7.53], [41.18, -7.68], [41.03, -8.03], [40.5, -8.25], [40.25, -8.15], [40.0, -8.25], [39.75, -8.15], [39.5, -8.25], [38.97, -8.03], [38.75, -7.5], [38.96, -7.0], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0], [38.35, -5.75], [38.25, -5.5], [38.47, -4.97]]]]}, "2012-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -4.97], [38.82, -4.82], [38.97, -4.47], [39.32, -4.32], [39.35, -4.25], [39.25, -4.0], [39.35, -3.75], [39.25, -3.5], [39.47, -2.97], [39.82, -2.82], [39.97, -2.47], [40.5, -2.25], [41.03, -2.47], [41.25, -3.0], [41.15, -3.25], [41.18, -3.32], [41.25, -3.35], [41.5, -3.25], [42.03, -3.47], [42.25, -4.0], [42.15, -4.25], [42.25, -4.5], [42.15, -4.75], [42.25, -5.0], [42.03, -5.53], [41.68, -5.68], [41.65, -5.75], [41.75, -6.0], [41.53, -6.53], [41.18, -6.68], [41.15, -6.75], [41.25, -7.0], [41.03, -7.53], [40.5, -7.75], [40.25, -7.65], [40.0, -7.75], [39.47, -7.53], [39.32, -7.18], [38.97, -7.03], [38.82, -6.68], [38.47, -6.53], [38.25, -6.0], [38.35, -5.75], [38.25, -5.5], [38.47, -4.97]]]]}, "2012-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -6.53], [38.25, -6.0], [38.47, -5.47], [39.0, -5.25], [39.53, -5.47], [39.75, -6.0], [39.53, -6.53], [39.0, -6.75], [38.47, -6.53]]], [[[39.85, -5.25], [39.75, -5.0], [39.85, -4.75], [39.75, -4.5], [39.97, -3.97], [40.32, -3.82], [40.47, -3.47], [41.0, -3.25], [41.53, -3.47], [41.68, -3.82], [42.03, -3.97], [42.25, -4.5], [42.15, -4.75], [42.25, -5.0], [42.03, -5.53], [41.68, -5.68], [41.53, -6.03], [41.18, -6.18], [41.03, -6.53], [40.5, -6.75], [39.97, -6.53], [39.75, -6.0], [39.85, -5.75], [39.75, -5.5], [39.85, -5.25]]]]}, "2012-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.97, -3.97], [40.32, -3.82], [40.47, -3.47], [41.0, -3.25], [41.53, -3.47], [41.68, -3.82], [42.03, -3.97], [42.25, -4.5], [42.15, -4.75], [42.25, -5.0], [42.03, -5.53], [41.68, -5.68], [41.53, -6.03], [41.0, -6.25], [40.47, -6.03], [40.32, -5.68], [39.97, -5.53], [39.75, -5.0], [39.85, -4.75], [39.75, -4.5], [39.97, -3.97]]]]}, "2012-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.47, -3.97], [41.0, -3.75], [41.53, -3.97], [41.68, -4.32], [42.03, -4.47], [42.25, -5.0], [42.03, -5.53], [41.5, -5.75], [41.25, -5.65], [41.0, -5.75], [40.47, -5.53], [40.25, -5.0], [40.35, -4.75], [40.25, -4.5], [40.47, -3.97]]]]}, "2012-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.5, -4.25], [42.03, -4.47], [42.25, -5.0], [42.03, -5.53], [41.5, -5.75], [40.97, -5.53], [40.75, -5.0], [40.97, -4.47], [41.5, -4.25]]]]}, "2012-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.5, -4.25], [42.03, -4.47], [42.25, -5.0], [42.03, -5.53], [41.5, -5.75], [40.97, -5.53], [40.75, -5.0], [40.97, -4.47], [41.5, -4.25]]]]}, "2012-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.97, -5.53], [40.75, -5.0], [40.97, -4.47], [41.5, -4.25], [41.75, -4.35], [42.0, -4.25], [42.53, -4.47], [42.75, -5.0], [42.53, -5.53], [42.0, -5.75], [41.75, -5.65], [41.5, -5.75], [40.97, -5.53]]]]}, "2012-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.97, -5.53], [40.75, -5.0], [40.97, -4.47], [41.5, -4.25], [41.75, -4.35], [42.0, -4.25], [42.53, -4.47], [42.75, -5.0], [42.53, -5.53], [42.0, -5.75], [41.75, -5.65], [41.5, -5.75], [40.97, -5.53]]]]}, "2012-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.97, -5.53], [40.75, -5.0], [40.97, -4.47], [41.5, -4.25], [41.75, -4.35], [42.0, -4.25], [42.53, -4.47], [42.75, -5.0], [42.53, -5.53], [42.0, -5.75], [41.75, -5.65], [41.5, -5.75], [40.97, -5.53]]]]}, "2012-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.0, -4.25], [42.53, -4.47], [42.75, -5.0], [42.53, -5.53], [42.0, -5.75], [41.47, -5.53], [41.25, -5.0], [41.47, -4.47], [42.0, -4.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.4092648629132896}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.8303140091307831}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.775149338569918, 26.185586879456707, 26.212682679673037, 26.39979901194016, 26.31533929116347, 26.139879860777853, 26.171835559670285, 26.406701350059507, 26.525031736627056, 26.33839398601151, 26.468885650049344, 26.419194398045647, 26.348213166164044, 26.187386024354282, 26.3394886641006, 26.254778687462647, 26.273610442859763]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.543387767988577, 25.336561512577077, 25.4527260330471, 25.587249888648728, 25.371727388052193, 25.417226489378947, 25.259197772759364, 25.536143098635023, 26.137113138879613, 26.01911836380367, 26.38679851113858, 26.419194398045647, 26.348213166164044, 26.150611425090858, 26.272688608679573, 26.20025878022892, 26.273610442859763]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.675188329235155, -0.7757754761003941, -0.8306815790905434, -0.6943611751740548, -0.8044811874378823, -0.9937833584550627, -0.9663048488219467, -0.7327576099161566, -0.6441036500873452, -0.757647215670481, -0.6254701522882632, -0.6509156184034168, -0.7163753033871103, -0.8364781742122602, -0.6855001522410191, -0.763391592043007, -0.7193032384967069]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.7403850915850967, -0.9742610471050739, -1.0080908746157888, -0.8393017125914639, -1.0278063228410588, -1.4092648629132896, -1.3841285542774813, -0.9459118540596592, -0.7753607894608194, -0.8643378226404934, -0.649668700656548, -0.6509156184034168, -0.7163753033871103, -0.8429742720474565, -0.7091793786361791, -0.7744526060848216, -0.7193032384967069]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4432918458869703, -1.697437632934551, -1.8361723429972836, -1.5304481548221676, -1.7140917146811998, -2.045800841353125, -1.8760289340354388, -1.414131098618022, -1.1735279381219241, -1.3197983347480648, -1.0907282548734876, -1.1186828582420727, -1.245605372563654, -1.4674227504920538, -1.2121467566317707, -1.3681347728612456, -1.2908765445594925]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6940881037425999, -2.3025212544031497, -2.2108352543314815, -1.87998162492125, -2.0885600189840514, -2.6753311368319226, -2.5456812325975218, -1.7288750017038292, -1.4072096457174639, -1.451492687393695, -1.1119945213906797, -1.1186828582420727, -1.245605372563654, -1.4926814497556757, -1.2422962762601528, -1.3741984180182405, -1.2908765445594925]}}