The Minister of Natural Resources and Environment of Vitenam promulgates Circular 49/2024/TT-BTNMT dated December 31, 2024, issuing the economic-technical norms for the operation of the network of meteorological and hydrological stations.
The content of the work shall be implemented according to the regulations in Circular 14/2022/TT-BTNMT promulgating the National Technical Regulation on Meteorological Observation, as follows:
(1) Field Work
- Observation preparation: inspect the condition of the construction, tools, measuring equipment (cleaning equipment, checking equipment), power supply, auxiliary equipment (replacing wet cloth in meter boxes), logs, and diagrams;
- Air temperature observation using thermometers: observe dry bulb, wet bulb, maximum, and minimum thermometers;
- Air temperature observation using automatic recorders: read temperature values, replace charts; mark charts;
- Observation site, construction: painting meteorological garden (includes painting fences, wind columns, shelters, measurement equipment stands), mowing garden, gardening soil for soil temperature measurement.
(2) Office Work
- Observation preparation: inspect the condition of the construction, tools, measuring equipment, power supply, auxiliary equipment, logs, and diagrams (cutting diagrams);
- Air temperature observation using thermometers: calculate average values and select extreme values;
- Air temperature observation using automatic recorders: diagram calculation, data verification;
- Encrypt data (data encoding);
- Enter data into software, transmit data.
Refer to detailed content in Circular 49/2024/TT-BTNMT effective from February 14, 2025.
Circular 24/2022/TT-BTNMT promulgates economic-technical norms for the operation of the hydrometeorological station network; Circular 20/2020/TT-BTNMT promulgates economic-technical norms for assessing the quality of surface hydrometeorological documents, which will become invalid from the date this Circular takes effect, except for the following cases:
Organizations and individuals that have been approved for tasks related to meteorological observation and quality assessment of hydrometeorological documents before February 14, 2025, shall comply with Circular 24/2022/TT-BTNMT and Circular 20/2020/TT-BTNMT.
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