\/<\/p>Specification<\/a>\/<\/p>Standards<\/b> Composed from open standards.<\/h1> 48 standards the protocol is drawn against, among them 3GPP, O-RAN, ITU-T timing, WMO WIGOS and WIS 2.0, OGC and STAC, and the IETF. They are design references, not claims of conformity.<\/p> Read the specification<\/a>Contribute<\/a> Functions<\/dt>12<\/dd> State machines<\/dt>11<\/dd> Objects<\/dt>21<\/dd> Standards<\/dt>48<\/dd> <\/dl> <\/section> Specification<\/a>Functions<\/a>State machines<\/a>Flows<\/a>Objects<\/a>Participants<\/a>Standards<\/a>Conformance<\/a>Governance<\/a>Changes<\/a>Implementers<\/a>Wire bindings<\/a>Reference scenes<\/a> <\/nav> On this page<\/p>Lineage<\/span><\/li>Standards<\/span><\/li>References<\/span><\/li><\/ol><\/nav>The practice this part continues.<\/h2> <\/header>WMO Global observing as a system<\/dt>The World Meteorological Organization\u2019s Global Observing System collects weather, climate, water and environmental data from satellites and surface stations, and is now part of WIGOS, the overarching framework for all WMO observing systems. WIS 2.0 carries the exchange of those data onto open standards and Web technologies. The protocol treats these frameworks as the reference for describing stations and publishing their data. [1]<\/span><\/sup>[2]<\/span><\/sup>[3]<\/span><\/sup><\/dd> 1972 Observation from orbit<\/dt>Landsat 1 launched on 23 July 1972 and began the longest-running Earth-observation satellite programme; Copernicus is the European Union\u2019s Earth-observation programme. Space and ground observations meet in one product only when their time, geometry and quality are stated; the protocol requires that context on every value. [4]<\/span><\/sup>[5]<\/span><\/sup><\/dd> Time A shared clock<\/dt>Coordinated Universal Time is computed by the BIPM from data contributed by timing laboratories; IEEE 1588 defines the Precision Time Protocol, and ITU-T G.8275.1 profiles it for phase and time synchronisation across networks. In the protocol, time is a function in its own right: a measurement whose clock cannot be trusted cannot be published as trusted. [6]<\/span><\/sup>[7]<\/span><\/sup>[8]<\/span><\/sup><\/dd> Semantics Shared vocabularies for sensing<\/dt>The OGC SensorThings API offers an open, geospatially enabled way to interconnect sensing devices, data and applications; the W3C Semantic Sensor Network ontology, a Recommendation since 2017, gives observations, sensors and samples a common meaning. The protocol describes instruments in these terms rather than in terms of its own. [9]<\/span><\/sup>[10]<\/span><\/sup><\/dd> <\/dl><\/section>48 standards, each with its role.<\/h2>Design references the protocol is drawn against, grouped by standards body.<\/p> <\/header> 12 of 48<\/p> <\/section>References<\/h2>Sources for the historical and standards statements on this page.<\/p> <\/header>World Meteorological Organization. “Global Observing System (GOS).” community.wmo.int\/en\/activity-areas\/global-observing-system-gos<\/a><\/li>World Meteorological Organization. “WMO Integrated Global Observing System (WIGOS).” community.wmo.int\/en\/activity-areas\/wigos<\/a><\/li>World Meteorological Organization. “WMO Information System (WIS) and WIS 2.0.” community.wmo.int\/en\/activity-areas\/wis<\/a><\/li>NASA. “Landsat 1.” landsat.gsfc.nasa.gov\/satellites\/landsat-1\/<\/a><\/li>European Union. “Copernicus.” www.copernicus.eu\/en<\/a><\/li>Bureau International des Poids et Mesures. “Realizing and disseminating international reference time scales: UTC, UTCr and TT(BIPM).” www.bipm.org\/en\/time-ftp<\/a><\/li>IEEE Std 1588-2019. “IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems.” doi.org\/10.1109\/IEEESTD.2020.9120376<\/a><\/li>ITU-T Recommendation G.8275.1. “Precision time protocol telecom profile for phase\/time synchronization with full timing support from the network.” www.itu.int\/rec\/T-REC-G.8275.1<\/a><\/li>Open Geospatial Consortium. “OGC SensorThings API.” www.ogc.org\/standards\/sensorthings\/<\/a><\/li>W3C (2017). “Semantic Sensor Network Ontology.” W3C Recommendation, 19 October 2017. www.w3.org\/TR\/vocab-ssn\/<\/a><\/li>Bradner, S. (1997). RFC 2119, “Key words for use in RFCs to Indicate Requirement Levels.” IETF. www.rfc-editor.org\/rfc\/rfc2119<\/a><\/li>Leiba, B. (2017). RFC 8174, “Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words.” IETF. www.rfc-editor.org\/rfc\/rfc8174<\/a><\/li><\/ol><\/section><\/main> Read it, test it, propose a change.<\/h2>The Observatory Protocol is an open specification stewarded by the Nexus Consortium. Any party may implement it, and every change is proposed and decided in public.<\/p> Read the specification<\/a>Contribute<\/a> <\/section>
\/<\/p>Standards<\/b> Composed from open standards.<\/h1>
48 standards the protocol is drawn against, among them 3GPP, O-RAN, ITU-T timing, WMO WIGOS and WIS 2.0, OGC and STAC, and the IETF. They are design references, not claims of conformity.<\/p> Read the specification<\/a>Contribute<\/a> Functions<\/dt>12<\/dd> State machines<\/dt>11<\/dd> Objects<\/dt>21<\/dd> Standards<\/dt>48<\/dd> <\/dl> <\/section> Specification<\/a>Functions<\/a>State machines<\/a>Flows<\/a>Objects<\/a>Participants<\/a>Standards<\/a>Conformance<\/a>Governance<\/a>Changes<\/a>Implementers<\/a>Wire bindings<\/a>Reference scenes<\/a> <\/nav> On this page<\/p>Lineage<\/span><\/li>Standards<\/span><\/li>References<\/span><\/li><\/ol><\/nav>The practice this part continues.<\/h2> <\/header>WMO Global observing as a system<\/dt>The World Meteorological Organization\u2019s Global Observing System collects weather, climate, water and environmental data from satellites and surface stations, and is now part of WIGOS, the overarching framework for all WMO observing systems. WIS 2.0 carries the exchange of those data onto open standards and Web technologies. The protocol treats these frameworks as the reference for describing stations and publishing their data. [1]<\/span><\/sup>[2]<\/span><\/sup>[3]<\/span><\/sup><\/dd> 1972 Observation from orbit<\/dt>Landsat 1 launched on 23 July 1972 and began the longest-running Earth-observation satellite programme; Copernicus is the European Union\u2019s Earth-observation programme. Space and ground observations meet in one product only when their time, geometry and quality are stated; the protocol requires that context on every value. [4]<\/span><\/sup>[5]<\/span><\/sup><\/dd> Time A shared clock<\/dt>Coordinated Universal Time is computed by the BIPM from data contributed by timing laboratories; IEEE 1588 defines the Precision Time Protocol, and ITU-T G.8275.1 profiles it for phase and time synchronisation across networks. In the protocol, time is a function in its own right: a measurement whose clock cannot be trusted cannot be published as trusted. [6]<\/span><\/sup>[7]<\/span><\/sup>[8]<\/span><\/sup><\/dd> Semantics Shared vocabularies for sensing<\/dt>The OGC SensorThings API offers an open, geospatially enabled way to interconnect sensing devices, data and applications; the W3C Semantic Sensor Network ontology, a Recommendation since 2017, gives observations, sensors and samples a common meaning. The protocol describes instruments in these terms rather than in terms of its own. [9]<\/span><\/sup>[10]<\/span><\/sup><\/dd> <\/dl><\/section>48 standards, each with its role.<\/h2>Design references the protocol is drawn against, grouped by standards body.<\/p> <\/header> 12 of 48<\/p> <\/section>References<\/h2>Sources for the historical and standards statements on this page.<\/p> <\/header>World Meteorological Organization. “Global Observing System (GOS).” community.wmo.int\/en\/activity-areas\/global-observing-system-gos<\/a><\/li>World Meteorological Organization. “WMO Integrated Global Observing System (WIGOS).” community.wmo.int\/en\/activity-areas\/wigos<\/a><\/li>World Meteorological Organization. “WMO Information System (WIS) and WIS 2.0.” community.wmo.int\/en\/activity-areas\/wis<\/a><\/li>NASA. “Landsat 1.” landsat.gsfc.nasa.gov\/satellites\/landsat-1\/<\/a><\/li>European Union. “Copernicus.” www.copernicus.eu\/en<\/a><\/li>Bureau International des Poids et Mesures. “Realizing and disseminating international reference time scales: UTC, UTCr and TT(BIPM).” www.bipm.org\/en\/time-ftp<\/a><\/li>IEEE Std 1588-2019. “IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems.” doi.org\/10.1109\/IEEESTD.2020.9120376<\/a><\/li>ITU-T Recommendation G.8275.1. “Precision time protocol telecom profile for phase\/time synchronization with full timing support from the network.” www.itu.int\/rec\/T-REC-G.8275.1<\/a><\/li>Open Geospatial Consortium. “OGC SensorThings API.” www.ogc.org\/standards\/sensorthings\/<\/a><\/li>W3C (2017). “Semantic Sensor Network Ontology.” W3C Recommendation, 19 October 2017. www.w3.org\/TR\/vocab-ssn\/<\/a><\/li>Bradner, S. (1997). RFC 2119, “Key words for use in RFCs to Indicate Requirement Levels.” IETF. www.rfc-editor.org\/rfc\/rfc2119<\/a><\/li>Leiba, B. (2017). RFC 8174, “Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words.” IETF. www.rfc-editor.org\/rfc\/rfc8174<\/a><\/li><\/ol><\/section><\/main> Read it, test it, propose a change.<\/h2>The Observatory Protocol is an open specification stewarded by the Nexus Consortium. Any party may implement it, and every change is proposed and decided in public.<\/p> Read the specification<\/a>Contribute<\/a> <\/section>
On this page<\/p>
Design references the protocol is drawn against, grouped by standards body.<\/p> <\/header>
12 of 48<\/p> <\/section>References<\/h2>Sources for the historical and standards statements on this page.<\/p> <\/header>World Meteorological Organization. “Global Observing System (GOS).” community.wmo.int\/en\/activity-areas\/global-observing-system-gos<\/a><\/li>World Meteorological Organization. “WMO Integrated Global Observing System (WIGOS).” community.wmo.int\/en\/activity-areas\/wigos<\/a><\/li>World Meteorological Organization. “WMO Information System (WIS) and WIS 2.0.” community.wmo.int\/en\/activity-areas\/wis<\/a><\/li>NASA. “Landsat 1.” landsat.gsfc.nasa.gov\/satellites\/landsat-1\/<\/a><\/li>European Union. “Copernicus.” www.copernicus.eu\/en<\/a><\/li>Bureau International des Poids et Mesures. “Realizing and disseminating international reference time scales: UTC, UTCr and TT(BIPM).” www.bipm.org\/en\/time-ftp<\/a><\/li>IEEE Std 1588-2019. “IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems.” doi.org\/10.1109\/IEEESTD.2020.9120376<\/a><\/li>ITU-T Recommendation G.8275.1. “Precision time protocol telecom profile for phase\/time synchronization with full timing support from the network.” www.itu.int\/rec\/T-REC-G.8275.1<\/a><\/li>Open Geospatial Consortium. “OGC SensorThings API.” www.ogc.org\/standards\/sensorthings\/<\/a><\/li>W3C (2017). “Semantic Sensor Network Ontology.” W3C Recommendation, 19 October 2017. www.w3.org\/TR\/vocab-ssn\/<\/a><\/li>Bradner, S. (1997). RFC 2119, “Key words for use in RFCs to Indicate Requirement Levels.” IETF. www.rfc-editor.org\/rfc\/rfc2119<\/a><\/li>Leiba, B. (2017). RFC 8174, “Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words.” IETF. www.rfc-editor.org\/rfc\/rfc8174<\/a><\/li><\/ol><\/section><\/main> Read it, test it, propose a change.<\/h2>The Observatory Protocol is an open specification stewarded by the Nexus Consortium. Any party may implement it, and every change is proposed and decided in public.<\/p> Read the specification<\/a>Contribute<\/a> <\/section>
Sources for the historical and standards statements on this page.<\/p> <\/header>
The Observatory Protocol is an open specification stewarded by the Nexus Consortium. Any party may implement it, and every change is proposed and decided in public.<\/p> Read the specification<\/a>Contribute<\/a> <\/section>