HYT159-2013 English PDF

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HYT159-2013: Method for sun photometer data calibration
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
HY/T 159-2013	419	Add to Cart	3 days	Method for sun photometer data calibration	Valid

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Basic data

Standard ID: HY/T 159-2013 (HY/T159-2013)
Description (Translated English): Method for sun photometer data calibration
Sector / Industry: Marine Industry Standard (Recommended)
Classification of Chinese Standard: N33
Classification of International Standard: 07.060; 17.180
Word Count Estimation: 16,118
Regulation (derived from): Industry standard filing Notice 2013 No. 8 (No. 164 overall)
Issuing agency(ies): State Oceanic Administration
Summary: This standard specifies: sun photometer Correction project and technical requirements, correcting condition principle of the method, measurement procedures, data processing and recording content, and reporting. This standard applies to: sun photometer for

HYT159-2013: Method for sun photometer data calibration

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method for sun photometer data calibration ICS 07.060;17.180 N33 People's Republic of China Marine Industry Standard Method for correcting measurement data of sun photometer Released on.2013-04-25 2013-05-01 Implementation Issued by the State Oceanic Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. Publication of this document The agency is not responsible for identifying these patents. This standard was proposed by the National Ocean Technology Center. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). Drafting organization of this standard. National Ocean Technology Center. The main drafters of this standard. Gao Fei, Li Tongji, Zhu Jianhua, Han Bing. Correction method of sun photometer measurement data

1 Scope

This standard specifies the calibration items and technical requirements, calibration conditions, method principles, measurement procedures, data processing and recording of the sun photometer. Records and reports. This standard is applicable to the correction of the corresponding voltage response value of the solar irradiance at the upper boundary of the atmosphere by the heliophotometer.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Spectral irradiance In the infinitesimal range around a given wavelength, the quotient of the irradiance and the wavelength interval. Note 1.The unit is expressed in microwatts per square centimeter nanometer (μW·cm-2·nm-1). Note 2.Rewrite GB/T 12936-2007, definition 3.5. 2.2 Atmospheric optical quality opticalairmass The ratio of the refraction path of sunlight through the atmosphere to the observation point when the sun is at any position and when it is at the zenith. Note. Rewrite GB/T 12936-2007, definition 5.20. 2.3 Optical thickness opticalthickness τ(λ) When the radiation is transmitted in the medium, it is weakened by the absorption and scattering of the medium. For a beam of wavelength λ, at the slave position z1 After passing through the medium with a thickness of (z1-z2) at position z2, calculate the optical thickness of the medium from the beam attenuation coefficient of the medium and the passing thickness, The formula is. τ(λ)=∫ z2 z1 C(λ,z)dz Where. C(λ,z)---beam attenuation coefficient, dimension [L-1]. Note. Rewrite JJG1032-2005, definition 4.38. 2.4 Solar zenithangle The angle between the sun's incident light and the local normal, 0°≤θ≤90°. Note. Rewrite QX/T 69-2007, definition 3.16. 2.5 Aerosolopticalthickness τa(λ) The optical thickness of radiation attenuation caused by aerosol scattering and absorption on the total path in the direction of the zenith of the entire atmosphere. Note. Rewrite QX/T 69-2007, definition 3.12. ......

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