bootstrap Not observable A system failure, sensor failure, or sensor obstruction, prevented the intended observation of the value. A system failure, sensor failure, or sensor obstruction, prevented the intended observation of the value. Not observable notObservable 2014-09-03T09:52:34.654Z 2 2019-10-24T10:25:37.851Z The value is not divulged. Withheld ISO 19136:2007 'Geographic information - Geography Markup Language' sub-clause 8.2.3.1 There is no value. Inapplicable ISO 19136:2007 'Geographic information - Geography Markup Language' sub-clause 8.2.3.1 The value was above the detection range of the instrument used to estimate it. Above detection range The value will be available later. Template ISO 19136:2007 'Geographic information - Geography Markup Language' sub-clause 8.2.3.1 2014-09-03T09:52:34.941Z Nil-reason terms are used to provide an explanation for recording a missing (or void) value within a data product. Terms are drawn from authorities in addition to WMO including ISO/TC 211 (from ISO 19136:2007 Geography markup language clause 8.2.3.1; published on their behalf by the Open Geospatial Consortium). The automated observing system did not detect a value (e.g. no cloud detected 'NCD'). Nothing detected by automated system D-1 12 Code Table D-1: Nil reasons Nothing was observed or forecast of operational significance (e.g. nil significant cloud 'NSC', nil significant weather 'NSW'). Nothing of operational signficance The value was below the detection range of the instrument used to estimate it. Below detection range The correct value is not readily available to the sender of this data. Furthermore, a correct value may not exist. Missing ISO 19136:2007 'Geographic information - Geography Markup Language' sub-clause 8.2.3.1 No significant change is expected to occur. No significant change NOSIG The correct value is not known to, and not computable by, the sender of this data. However, a correct value probably exists. Unknown ISO 19136:2007 'Geographic information - Geography Markup Language' sub-clause 8.2.3.1 2019-10-24T10:25:37.429Z 2 template The value will be available later. Template bootstrap 2014-09-03T09:52:34.458Z 2014-09-03T09:52:34.798Z 2 BelowDetectionRange Below detection range bootstrap The value was below the detection range of the instrument used to estimate it. 2019-10-24T10:25:37.692Z 2 bootstrap unknown Unknown The correct value is not known to, and not computable by, the sender of this data. However, a correct value probably exists. 2014-09-03T09:52:34.702Z 2019-10-24T10:25:37.369Z The automated observing system did not detect a value (e.g. no cloud detected 'NCD'). Nothing detected by automated system 2014-09-03T09:52:34.379Z 2019-10-24T10:25:37.909Z bootstrap 2 notDetectedByAutoSystem The correct value is not readily available to the sender of this data. Furthermore, a correct value may not exist. 2019-10-24T10:25:37.484Z bootstrap missing Missing 2 2014-09-03T09:52:34.93Z 2014-09-03T09:52:34.334Z AboveDetectionRange The value was above the detection range of the instrument used to estimate it. 2019-10-24T10:25:37.779Z Above detection range bootstrap 2 The value is not divulged. 2014-09-03T09:52:34.604Z 2 Withheld bootstrap 2019-10-24T10:25:37.545Z withheld bootstrap 2 2014-09-03T09:52:34.843Z NOSIG 2019-10-24T10:25:37.601Z No significant change is expected to occur. noSignificantChange 2019-10-24T10:25:37.301Z 2014-09-03T09:52:34.888Z 2 inapplicable There is no value. Inapplicable bootstrap 1 2014-09-03T09:52:34.259Z bootstrap Code Table D-1: Nil reasons nil Nil-reason terms are used to provide an explanation for recording a missing (or void) value within a data product. Terms are drawn from authorities in addition to WMO including ISO/TC 211 (from ISO 19136:2007 Geography markup language clause 8.2.3.1; published on their behalf by the Open Geospatial Consortium). 2 Nothing was observed or forecast of operational significance (e.g. nil significant cloud 'NSC', nil significant weather 'NSW'). bootstrap Nothing of operational signficance nothingOfOperationalSignificance 2019-10-24T10:25:37.965Z 2014-09-03T09:52:34.536Z