Analysis of infrared limb atmospheric transmittance based on atmospheric profile observed by satellite

2021 ◽  
Author(s):  
Jingyu Bai ◽  
Lu Bai
Keyword(s):  
Atmospheric Profile ◽  
Atmospheric Transmittance

Atmospheric Transmittance/Radiance: Computer Code LOWTRAN 6. Supplement: Program Listings

1983 ◽  
Author(s):  
F. X. Kneizys ◽  
E. P. Shettle ◽  
W. O. Gallery ◽  
J. H. Chetwynd ◽  
Abreu Jr. ◽  
...  
Keyword(s):  
Computer Code ◽  
Atmospheric Transmittance

scholarly journals AT2ES: Simultaneous Atmospheric Transmittance-Temperature-Emissivity Separation Using Online Upper Midwave Infrared Hyperspectral Images

2021 ◽  
Vol 13 (7) ◽  
pp. 1249
Author(s):  
Sungho Kim ◽  
Jungsub Shin ◽  
Sunho Kim
Keyword(s):  
Air Temperature ◽  
Atmospheric Correction ◽  
Hyperspectral Data ◽  
Hyperspectral Images ◽  
Co2 Absorption ◽  
Infrared Band ◽  
Data Regression ◽  
Midwave Infrared ◽  
Novel Method ◽  
Atmospheric Transmittance

This paper presents a novel method for atmospheric transmittance-temperature-emissivity separation (AT2ES) using online midwave infrared hyperspectral images. Conventionally, temperature and emissivity separation (TES) is a well-known problem in the remote sensing domain. However, previous approaches use the atmospheric correction process before TES using MODTRAN in the long wave infrared band. Simultaneous online atmospheric transmittance-temperature-emissivity separation starts with approximation of the radiative transfer equation in the upper midwave infrared band. The highest atmospheric band is used to estimate surface temperature, assuming high emissive materials. The lowest atmospheric band (CO2 absorption band) is used to estimate air temperature. Through onsite hyperspectral data regression, atmospheric transmittance is obtained from the y-intercept, and emissivity is separated using the observed radiance, the separated object temperature, the air temperature, and atmospheric transmittance. The advantage with the proposed method is from being the first attempt at simultaneous AT2ES and online separation without any prior knowledge and pre-processing. Midwave Fourier transform infrared (FTIR)-based outdoor experimental results validate the feasibility of the proposed AT2ES method.

Atmospheric transmittance from spacecraft using multiple view angle imagery

1985 ◽  
Vol 24 (21) ◽  
pp. 3503 ◽  
Author(s):  
David J. Diner ◽  
John V. Martonchik
Keyword(s):  
Multiple View ◽  
Atmospheric Transmittance

scholarly journals A Method for Deriving the Boundary Layer Mixing Height from MODIS Atmospheric Profile Data

Atmosphere ◽  
2015 ◽  
Vol 6 (9) ◽  
pp. 1346-1361 ◽  
Author(s):  
Xueliang Feng ◽  
Bingfang Wu ◽  
Nana Yan
Keyword(s):  
Boundary Layer ◽  
Mixing Height ◽  
Profile Data ◽  
Atmospheric Profile

scholarly journals Attenuation processes of solar radiation. Application to the quantification of direct and diffuse solar irradiances on horizontal surfaces in Mexico by means of an overall atmospheric transmittance

2018 ◽  
Vol 81 ◽  
pp. 93-106 ◽  
Author(s):  
Antonio J. Gutiérrez-Trashorras ◽  
Eunice Villicaña-Ortiz ◽  
Eduardo Álvarez-Álvarez ◽  
Juan M. González-Caballín ◽  
Jorge Xiberta-Bernat ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Atmospheric Transmittance

Research on the Influence of Ocean Atmosphere to Infrared Detection

2012 ◽  
Vol 472-475 ◽  
pp. 1698-1701 ◽  
Author(s):  
Yu Chen ◽  
Yunan Hu ◽  
Kun Hu Kou ◽  
Hai Jun Li ◽  
Gang Zhang
Keyword(s):  
Boundary Layer ◽  
Infrared Detection ◽  
Infrared Transmission ◽  
Horizontal Path ◽  
Atmospheric Window ◽  
Ocean Atmosphere ◽  
Slant Path ◽  
Atmospheric Transmittance ◽  
Total Transmittance ◽  
Major Absorption Band

Ocean atmospheric transmittance is an important factor to influence detecting distance of infrared system. The influence efficiency of infrared detection is studied by using modtran, on the basis of studying the character of infrared transmission. Firstly, major absorption band of vapor, carbon dioxide, ozone and vapor continuum and the change of transmittance in boundary layer, troposphere and stratosphere are analyzed. Secondly, atmospheric window transmittance of navy maritime aerosol in horizontal path and slant path is analyzed, and the influence of four types of maritime aerosol is also analyzed for navy maritime aerosol. Lastly, the influence of five model atmospheres to total transmittance is analyzed.

scholarly journals Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12373
Author(s):  
Lili Jin ◽  
Sasa Zhou ◽  
Qing He ◽  
Alim Abbas
Keyword(s):  
Solar Radiation ◽  
Scattered Radiation ◽  
Weather Conditions ◽  
Taklimakan Desert ◽  
Observation Data ◽  
Total Radiation ◽  
Direct Radiation ◽  
Northern Margin ◽  
Monthly Total ◽  
Atmospheric Transmittance

The characteristics of solar radiation and the influence of sand and dust on solar radiation in the northern margin of Taklimakan Desert were analyzed using radiation observation data from 2018. The results showed that the annual total radiation, direct radiation, and scattered radiation at Xiaotang were 5,781.8, 2,337.9, and 3,323.8 MJ m−2, respectively. The maximum monthly total radiation, direct radiation, and scattered radiation were observed in July (679.8 MJ m−2), August (317.3 MJ m−2), and May (455.7 MJ m−2), respectively. The aerosol optical depth corresponded well with the scattered radiation, and the maximum value was in May. Further analysis showed a significant correlation between the total radiation and solar height angle under different weather conditions. Under the same solar height angle, total radiation was higher during clear days but lower on sandstorm days. Calculation of atmospheric transmittance showed that the average atmospheric transmittance on a clear day was 0.67; on sand-and-dust days, it was 0.46. When the atmospheric transmittance was 0.5, the increase in scattering radiation by aerosol in the air began to decrease. Probability analysis of radiation indicated the following probabilities of total radiation <500 W m−2 occurring on clear, floating-dust, blowing-sand, and sandstorm days: 67.1%, 76.3%, 76.1%, and 91.8%, respectively. Dust had the greatest influence on direct radiation; the probabilities of direct radiation <200 W m−2occurring on clear, floating-dust, blowing-sand, and sandstorm days were 44.5%, 93.5%, 91.3%, and 100%, respectively, whereas those of scattered radiation <600 W m−2were 100%, 99.1%, 98.1%, and 100%, respectively. Therefore, the presence of dust in the air will reduce scattered radiation.

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