1974, remarks at the International Tropical Meteorology Meeting, January 31-February 7, 1974, Nairobi, Kenya:
The 7-days period peak appeared in the lower and middle tropospheres also. But no evidence of the existence of 3-4 days periodicity is found in the lower troposphere while a peak at 10-12 days period is apparent.
1983, paper presented at the Bern CO2 Symposium:
The data for the middle and upper tropospheres were adopted from the height ranges of 5.0-6.0 km and 8.0-9.0 km, respectively, and they were simply averaged remembering that the vertical gradient of C02 concentration is not so steep […]
Different levels of Jupiter's and Saturn's tropospheres are probed by their infrared spectrum.
2008, I.P. Williams, N. Thomas, Solar and Extra-Solar Planetary Systems, page 69:
In all cases, these measurements refer to the troposphere, below the condensation level which appears in Uranus' and Neptune's upper tropospheres.
2009, Patrick Irwin, Giant Planets of Our Solar System, page 92:
[…] we will now discuss the photodissociation of the three most important photo-active gases in the upper tropospheres and stratospheres of the giant planets:
