GB/T 33703-2017 in English

VALID

Specifications observating for automatic weather station

Issued on:2017-05-12
Implemented on:2017-12-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $550.00
$534.00

Standard No:	GB/T 33703-2017
Document status:	VALID
Title in English:	Specifications observating for automatic weather station
Title in Chinese:	自动气象站观测规范
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2017-05-12
Implemented on:	2017-12-01
ICS Classification:	07.060-Geology. Meteorology. Hydrology
Chinese Classification:	A47-Meteorology
Professional Classification:	GB-National Standard
Related Keywords:	automatic weather station automatic weather station introduction interpretation improve data file b1-b4 format specifications national station data storage period algorithm specifications element
Related Topics:	Micro Observatory observation super station weather station small weather station Micro Automatic Weather Station weather station ultraviolet Micro Automatic Monitoring Station Electromagnetic Monitoring Automatic Station Zhongyi Weather Station Atmospheric Automatic Station remote astronomical observatory automatic weather station Small automatic weather station weather observation equipment Automatic Weather Station Observations Portable Small Automatic Weather Station weather station observation A mobile weather station automatic meteorological station Meteorological automatic monitoring system weather station degree Portable Small Weather Station Small Meteorological Automatic Observation Equipment Handheld Automatic Weather Station Small Weather Station Automatic Weather Station Automatic Weather Station Parameters weather station technology GBT33703 GB/T 33703-2017 Maintenance Specifications for New Automatic Weather Stations (Trial Implementation) Standard Specification for Automatic Air Monitoring Stations 20200301 Weather station design specifications "Automatic Weather Station Observation Specifications" gb/t 33703-2017 , weather station land Specification download automatic inclinometer tube Meteorological greenhouse gas observation methods The latest version of the design specifications for meteorological observation sites Weather station standards and Weather station leaves the factory Weather station ground observation station design Weather station land Ground meteorological observation station technology Standard Weather Station Design Architectural design of meteorological observation station Standard station and micro station Standard meteorological observation site Meteorological observation site pool size gb/t 33703-2017 Micro Weather Station Power Automatic observation of wetland ecological meteorology

《GB/T 33703-2017自动气象站观测规范》由TC507（全国气象仪器与观测方法标准化技术委员会）归口，主管部门为中国气象局。

Introduction

Interpretation of the core content of the standard

Technical elements	GB/T 33703-2017 requirements	Comparison of international standards
Air pressure measurement range	450-1100hPa	WMO standard 500-1100hPa
Air temperature measurement error	±0.2℃	±0.3℃(WMO)
Wind speed sampling frequency	60 times/minute	10 times/minute(ISO 16622)

Key Technical Requirements

1. Observation System Architecture

The automatic weather station consists of three parts: sensor, collector, and power supply unit, which must meet the following requirements:

National station data storage period: instantaneous value 1 hour, minute value 7 days, hour value 1 month
Time synchronization error ≤30 seconds (Beijing time reference)
Data transmission supports active/passive dual modes

2. Core algorithm specifications

Element type	Algorithm	Special processing
Wind speed	10-minute sliding average	V=0.5+0.03V(error compensation)
Precipitation	Cumulative value algorithm	Tipping bucket/weighing dual standard
Wind direction	Unit vector average method	Quadrant correction rule

Implementation points and suggestions

Typical application scenarios

Observation stations in high-altitude and cold regions should pay special attention to:

The buried depth of the ground temperature sensor should meet the requirements of the -50℃~+80℃ range
Use weighing precipitation sensor to avoid missing solid precipitation
The data file GGYYMMDD.DAT needs to add snow depth quality control mark

Key points of quality control

Metadata must include instrument calibration records (latest date + validity period)
Data marking system: five levels: correct/suspicious/error/missing/modified
Sampling frequency compliance verification (such as visibility 4 times/minute)

Standard evolution analysis

Main improvements compared to the 2005 version:

Added technical indicators of Weighing precipitation sensor
Refine CAN bus status monitoring requirements
Supplement intelligent sensor working status coding
Improve data file B1-B4 format specifications

More samples: DL/T 368-2010 JJG 21-2008 GB 50021-2001(2009)

Sample only — not a preview of GB/T 33703-2017

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