Letter to the Editor: the Detection of Water Vapor on Mars.

Photochemistry of the martian atmosphere: Seasonal, latitudinal, and diurnal variations

“…µm Variable; Spinrad et al (1963), Jakosky and Farmer (1982), Fedorova et al (2004), Smith (2004) O 3 0-60 µm-atm Variable; Barth and Hord (1971), Barth et al (1973), Espenak et al (1991), Clancy et al (1999), Fast (2005) He 10 ppm Krasnopolsky et al (1994), Krasnopolsky and Gladstone (2005) H 2 17 ppm Krasnopolsky and Feldman (2001); see text HD 12 ppb Based on the observation of D; Krasnopolsky et al (1998), Krasnopolsky (2002) H 2 O 2 0-40 ppb Variable; Clancy et al (2004), Encrenaz et al (2002, 2004 10 ppb Krasnopolsky et al (2004), Formisano et al (2004) Krasnopolsky (2006aKrasnopolsky ( , 2006b Note. First detections along with the latest data are given.…”

Mars’ water vapor mapping by the SPICAM IR spectrometer: Five martian years of observations

“…Ever since its first discovery on Mars in 1963 (Spinrad et al, 1963), water vapor has been a subject of study for spacecraft and ground-based observations. In the late 1970s, the MAWD instrument on the Viking 1 and 2 orbiters provided the first long-term observations of the water vapor cycle covering 1.5 martian years (Jakosky and Farmer, 1982).…”

Seasonal variation of the HDO/H2O ratio in the atmosphere of Mars at the middle of northern spring and beginning of northern summer

“…Since the first discovery of water vapor in the martian atmosphere using ground-based observations (Spinrad et al, 1963), the investigation of the water cycle on Mars has been one of the central topics of martian planetary science. Space-borne observations have revealed that the global and seasonal distribution of water vapor is mainly controlled by dynamics and sublimation-c ondensation process between the atmosphere and the polar caps.…”