tropopause height
Time lag between the tropopause height and the levels of 7Be concentration in near surface air
... with tropopause height on the other hand, indicating that wet scavenging and downward transport from the upper/middle to lower troposphere within anticyclonic conditions are the main controlling mechanisms ...
10
Influence of large scale variations in convective available potential energy (CAPE) and solar cycle over temperature in the tropopause region at Delhi (28 3°N, 77 1°E), Kolkata (22 3°N, 88 2°E), Cochin (10°N, 77°E), and Trivandrum (8 5°N, 77 0°E) using radiosonde during 1980–2005
... In this study, we have utilized 27 years of daily ra- diosonde data collected at the Delhi and Kolkata stations from 1980 to 2006 and 17 years of radiosonde data col- lected at the Cochin and Trivandrum stations between ...
13
MU radar observations of tropopause variations by using clear air echo characteristics
... the tropopause height according to the conventional defini- tion of tropopause height from World Meteorological Orga- nization (WMO) that is, the tropopause is defined as the lowest ...
10
A Novel Tool for the Determination of Tropopause Heights by Using GNSS Radio Occultation Data
... It is currently well known the relevance of the tropopause as a fingerprint to study atmospheric Global Change. The huge availability of GNSS RO data thanks to missions like COSMIC or METOP, have made its ...
14
Tropopause altitude determination from temperature profile measurements of reduced vertical resolution
... point tropopause altitude from tempera- ture profiles of degraded altitude resolution typically leads to an underestimation of the tropopause ...point tropopause. For midlat- itudinal temperature ...
17
High resolution Beijing mesosphere–stratosphere–troposphere (MST) radar detection of tropopause structure and variability over Xianghe (39 75° N, 116 96° E), China
... thermal tropopause (hereafter referred to as LRT) based on the temperature lapse rate (WMO, ...the tropopause can be applied glob- ally, and the tropopause height can easily be determined from ...
13
Analysis of the potential of one possible instrumental configuration of the next generation of IASI instruments to monitor lower tropospheric ozone
... on tropopause height derived from the ...a tropopause higher than 14 km as a proxy for tropical air masses and then we used a tropical a priori (yearly climatological pro- file 20–30 ◦ N) in those ...
15
Extending water vapor trend observations over Boulder into the tropopause region: Trend uncertainties and resulting radiative forcing
... the tropopause in the UTLS [Oltmans and Hofmann, 1995; Oltmans et ...the tropopause height itself has a posi- tive trend ( ...respective tropopause temperature is globally decreas- ing ( ...
17
The extratropical tropopause inversion layer: Global observations with GPS data, and a radiative forcing mechanism
... between tropopause structure and large-scale cir- culation, we use relative vorticity () on the 200-hPa level derived from the NCEP reanalysis (Kalnay et ...mean height of the tropopause within each ...
9
Interannual variability of temperature in the UTLS region over Ganges–Brahmaputra–Meghna river basin based on COSMIC GNSS RO data
... tropical) tropopause since QBO is a tropical phenomenon ...The tropopause heights are negatively correlated with their temperatures and, therefore, vary inversely with its temperature, ...in ...
15
Tropospheric ozone column retrieval from OMI data by means of neural networks: a validation exercise with ozone soundings over Europe
... thickness, tropopause height and tropospheric ozone column) cannot be explicitly formulated, although it is known that a physical correlation between these quan- tities ...
12
Strong downdrafts preceding rapid tropopause ascent and their potential to identify cross tropopause stratospheric intrusions
... derived tropopause height and vertical winds are strong com- plementary indicators to be used to infer the occurrence of the intrusions of stratospheric ...
15
Height and Social Adjustment
... “not referred.” Most importantly, no research has shown clear linkages between giving growth hormone, changes in height, and subsequent changes in adjustment. If growth-promoting medical therapies are offered to ...
5
The height of Ben Lomond
... It was tempting to disregard the results from the Nile gorge base, and to treat the height, 5158 feet, obtained from the Stacks Bluff base, agreeing so closely with the height given by t[r] ...
12
Greenhouse gas analysis of air samples collected onboard the CARIBIC passenger aircraft
... upper troposphere and the tropopause region. A time shift of about one month due to transport across the tropopause has been found, reflecting the transport time of upper tropo- spheric air masses across ...
16
Stratospheric ozone in 3 D models: A simple chemistry and the cross tropopause flux
... The first, linearizodozone or Linoz, is a first-order Taylor expansionof stratosphcric chemical rates in which the ozone tendency has been linearizod about the local ozone mixing ratio, [r] ...
13
Processes Controlling Tropical Tropopause Temperature and Stratospheric Water Vapor in Climate Models
... the tropopause, determined in the MetUM by the in- terpolation and conservation schemes used within the advection routine, is found to be particularly ...the tropopause are treated so as to be essentially ...
21
A method to improve the determination of wave perturbations close to the tropopause by using a digital filter
... around tropopause levels, which are apparently due to arti- facts generated by any digital filter used to isolate the wave components from these ...the tropopause, mainly at low latitudes, where a sharp ...
8
Horizontal transport affecting trace gas seasonality in the Tropical Tropopause Layer (TTL)
... its impact on seasonal variations of ozone, carbon monoxide and water vapor in the Tropical Tropopause Layer (TTL). For this purpose, we use three-dimensional backward trajectories, driven by ECMWF ERA-Interim ...
16
Tropopause and hygropause variability over the equatorial Indian Ocean during February and March 1999
... point tropopause, the hygropause, and the range of potential temperatures for which each profile was saturated with respect to water ...The tropopause and hygropause data are given with respect to ...
14