Relative optical mass functions for air, water vapour, ozone and nitrogen dioxide in atmospheric models presenting different latitudinal and seasonal conditions

  title={Relative optical mass functions for air, water vapour, ozone and nitrogen dioxide in atmospheric models presenting different latitudinal and seasonal conditions},
  author={Claudio Tomasi and V. Vitake and Laura De Santis},
  journal={Meteorology and Atmospheric Physics},
SummaryA study of the dependence features of the relative optical mass functions for air, water vapour, ozone and nitrogen dioxide on the apparent solar zenith angle θ was performed by calculating these optical parameters by means of the well-known computer code LOWTRAN 7 at several values of θ and for nine atmospheric models characterized by different latitudes and seasons. Moreover, other investigations were performed on the dependence features of (i) the relative optical air mass on the… 

Calculations of relative optical air masses for various aerosol types and minor gases in Arctic and Antarctic atmospheres

The dependence functions of relative optical air mass on apparent solar zenith angle θ have been calculated over the θ < 87° range for the vertical profiles of wet‐air molecular number density in the

Aerosol optical depth determination in the UV using a four-channel precision filter radiometer

Abstract. The determination of aerosol properties, especially the aerosol optical depth (AOD) in the ultraviolet (UV) wavelength region, is of great importance for understanding the climatological

Characterization of the atmospheric temperature and moisture conditions above Dome C (Antarctica) during austral summer and fall months

Two sets of radiosounding measurements were taken at Dome C (Antarctica) in December 2003 and January 2003 and 2004, using RS80-A, RS80-H, and RS90 Vaisala radiosondes, and from March to May 2005,

Water vapour retrieval using the Precision Solar Spectroradiometer

Abstract. The Precision Solar Spectroradiometer (PSR) is a new spectroradiometer developed at Physikalisch-Meteorologisches Observatorium Davos – World Radiation Center (PMOD–WRC), Davos, measuring

Atmospheric Measurement Techniques Relationship between the NO 2 photolysis frequency and the solar global irradiance

Representative values of the atmospheric NO 2 photolysis frequencyj (NO2) are required for the adequate calculation and interpretation of NO and NO 2 concentrations and exchange fluxes near the

Functional forms for approximating the relative optical air mass

[1] This article constitutes a review and systematic comparison of functional forms for approximating the air mass from the zenith to the horizon. Among them, we find the most meaningful forms in

Enhanced remote sensing of atmospheric aerosol by joint inversion of active and passive remote sensing observations

This thesis presents the GARRLiC algorithm (Generalized Aerosol Retrieval from Ra- diometer and Lidar Combined data) that simultaneously inverts co-incident lidar and sun-photometer observations and



Vertical distribution features of atmospheric water vapor in the Mediterranean, Red Sea, and Indian Ocean

Measurements of total precipitable water w and of water vapor scale height H were obtained from both sun photometer measurements and soundings taken in the Mediterranean, Red Sea, and Indian Ocean

A new table and approximation formula for the relative optial air mass

SummaryThe mostly used table of the relative optical air massm as function of solar altitude γ (or zenith angle ϑ=90°—γ) was computed byBemporad [1, 2, 3] using values of the vertical air density

Optical Properties of the Atmosphere (Third Edition)

Abstract : A series of tables and charts is presented from which the atmospheric transmittance between any two points in the terrestrial atmosphere can be determined. This material is based on a set

The antarctic ozone minimum: Relationship to odd nitrogen, odd chlorine, the final warming, and the 11‐year solar cycle

Photochemical calculations along “diabatic trajectories” in the meridional plane are used to search for the cause of the dramatic springtime minimum in Antarctic column ozone. Results indicate that

Use of sky brightness measurements from ground for remote sensing of particulate polydispersions.

Improved calibration methods for both direct and diffuse radiation, the data-analysis procedure, the results from the proposed code, and several connected problems are discussed.

Transport processes and ozone perturbations

In future years, the chlorine abundances in the earth's stratosphere are expected to increase as a result of man's activities. Currently accepted photochemistry suggests that this perturbation to the

Total ozone observation by sun photometry at Arosa, Switzerland

The method used for ground-based total ozone observations and the design of two instruments used to monitor atmospheric total ozone at Arosa (Dobson spectrophotometer and Brewer spectrometer) are

The Effect of Atmospheric Attenuators with Structured Vertical Distributions on Air Mass Determinations and Langley Plot Analyses

Abstract The effect of vertical inhomogeneities of atmospheric attenuators upon determinations of air mass and upon Langley plot determinations of the extra-atmospheric solar irradiance is examined

A photoelectric spectrophotometer for measuring the amount of atmospheric ozone

A special instrument is described in detail which has been designed in order to allow measurements of the amount of ozone in the atmosphere to be made easily and rapidly under nearly all conditions.

Error analysis of multi-wavelength sun photometry

  • G. Shaw
  • Physics, Environmental Science
  • 1976
The error terms involved in precision multi-wavelength sun photometry, as used to study atmospheric aerosols, are analyzed. The error terms treated include instrumental errors, calibration errors,