Seasonal variation of CO2and nutrients in the high-latitude surface oceans: A comparative study

1993 ◽  
Vol 7 (4) ◽  
pp. 843-878 ◽  
Author(s):  
Taro Takahashi ◽  
Jon Olafsson ◽  
John G. Goddard ◽  
David W. Chipman ◽  
S. C. Sutherland
Keyword(s):  
Seasonal Variation ◽  
Comparative Study ◽  
High Latitude

scholarly journals Tropopause height at 78° N 16° E: average seasonal variation 2007–2010

2011 ◽  
Vol 11 (1) ◽  
pp. 39-52
Author(s):  
C. M. Hall ◽  
G. Hansen ◽  
F. Sigernes ◽  
K. M. Kuyeng Ruiz
Keyword(s):  
Climate Change ◽  
Seasonal Variation ◽  
Air Temperature ◽  
High Latitude ◽  
Column Density ◽  
Surface Air Temperature ◽  
The Arctic ◽  
Tropopause Height ◽  
Vhf Radar ◽  
Ozone Column

Abstract. We present a seasonal climatology of tropopause altitude for 78° N 16° E derived from observations 2007–2010 by the SOUSY VHF radar on Svalbard. The spring minimum occurs one month later than that of surface air temperature and instead coincides with the maximum in ozone column density. This confirms similar studies based on radiosonde measurements in the arctic and demonstrates downward control by the stratosphere. If one is to exploit the potential of tropopause height as a metric for climate change at high latitude and elsewhere, it is imperative to observe and understand the processes which establish the tropopause – an understanding to which this study contributes.

scholarly journals A Comparative Study on Seasonal Variation in Body Temperature and Blood Composition of Camels and Sheep

2012 ◽  
Vol 11 (6) ◽  
pp. 769-773 ◽  
Author(s):  
Khalid A. Abdoun ◽  
Emad M. Samara . ◽  
Aly B. Okab . ◽  
Ahmed I. Al-Haidary .
Keyword(s):  
Seasonal Variation ◽  
Body Temperature ◽  
Comparative Study ◽  
Blood Composition

Comparative Study of Equatorial and High-Latitude Over-The-Horizon Radar Parameters Using Ray-Tracing Simulations

2021 ◽  
Vol 18 (1) ◽  
pp. 53-57
Author(s):  
Mariano Fagre ◽  
Bruno S. Zossi ◽  
Jaroslav Chum ◽  
Erdal Yigit ◽  
Ana G. Elias
Keyword(s):  
Comparative Study ◽  
Ray Tracing ◽  
High Latitude

scholarly journals Tropopause height at 78° N 16° E: average seasonal variation 2007–2010

2011 ◽  
Vol 11 (11) ◽  
pp. 5485-5490 ◽  
Author(s):  
C. M. Hall ◽  
G. Hansen ◽  
F. Sigernes ◽  
K. M. Kuyeng Ruiz
Keyword(s):  
Climate Change ◽  
Seasonal Variation ◽  
Air Temperature ◽  
High Latitude ◽  
Column Density ◽  
Surface Air Temperature ◽  
The Arctic ◽  
Tropopause Height ◽  
Vhf Radar ◽  
Ozone Column

Abstract. We present a seasonal climatology of tropopause altitude for 78° N 16° E derived from observations 2007–2010 by the SOUSY VHF radar on Svalbard. The spring minimum occurs one month later than that of surface air temperature and instead coincides with the maximum in ozone column density. This confirms similar studies based on radiosonde measurements in the arctic and demonstrates downward control by the stratosphere. If one is to exploit the potential of tropopause height as a metric for climate change at high latitude and elsewhere, it is imperative to observe and understand the processes which establish the tropopause – an understanding to which this study contributes.

scholarly journals A COMPARATIVE STUDY IN THE SEASONAL VARIATION OF MORTALITY IN THE WORLD (III)

1974 ◽  
Vol 47 (8) ◽  
pp. 481-497
Author(s):  
Masako MOMIYAMA-SAKAMOTO ◽  
Kunie KATAYAMA
Keyword(s):  
Seasonal Variation ◽  
Comparative Study ◽  
The World

Seasonal variation of ozone vertical profiles form ExoMars TGO and comparison to water

2021 ◽  
Author(s):  
Manish R. Patel ◽  
Graham Seller ◽  
Jonathon Mason ◽  
James Holmes ◽  
Megan Brown ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
High Altitude ◽  
Relative Abundance ◽  
High Latitude ◽  
Dust Storm ◽  
Trace Gas ◽  
Line Of Sight ◽  
Vertical Profiles ◽  
Elevated Ozone ◽  
Vertical Distributions

<p>The Ultraviolet and Visible Spectrometer (UVIS) channel [1] of the Nadir and Occultation for Mars Discovery (NOMAD) instrument [2] aboard the ExoMars Trace Gas Orbiter has been making observations of the vertical, latitudinal and seasonal distributions of ozone.  Here, we present ~1.5 Mars Years (MY) of vertical profiles of ozone, from <em>L</em><sub>S</sub> = 163° in MY34 to <em>L</em><sub>S</sub> = 320° in MY35.  This period includes the occurrence of the MY34 Global Dust Storm. The relative abundance of both ozone and water (from coincident NOMAD measurements) increases with decreasing altitude below ~40 km at perihelion and at aphelion, localised decreases in ozone abundance exist between 25-35 km coincident with the location of modelled peak water abundances. High latitude (> ± 55°), high altitude (40-55 km) equinoctial ozone enhancements are observed in both hemispheres (<em>L</em><sub>S</sub> ~350‑40°).  Morning terminator observations show elevated ozone abundances with respect to evening observations, most likely attributed to diurnal photochemical partitioning along the line of sight between ozone and O. The ozone retrievals presented here provide the most complete global description of Mars ozone vertical distributions to date as a function of season and latitude</p>

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