Surface Air Temperature Fluctuations and Lapse Rates on Olivares Gamma Glacier, Rio Olivares Basin, Central Chile, from a Novel Meteorological Sensor Network

Table 2

Comparison of surface air temperature (°C) mean hourly data for 22–26 March 2015 at DGA and the five Tinytag sites (2-m sensors). See Figure 1 and Table 1 for site details. Hours with nocturnal observations are highlighted in italic (https://www.timeanddate.com/sun/chile/santiago), here illustrated in UTC.

Hour (UTC)	DGA	S2	S6	S5	S3	S4
0	3.8	2.1	0.1	−1.6	−1.5	−4.0
1	3.1	2.0	0.3	−1.8	−1.8	−4.2
2	2.7	1.3	−0.2	−2.1	−1.9	−4.3
3	2.2	1.5	−0.5	−2.1	−1.9	−4.4
4	1.7	2.2	0.2	−2.0	−2.1	−4.6
5	2.1	1.6	0.0	−2.4	−2.4	−4.8
6	2.1	1.1	−0.4	−2.7	−2.6	−5.1
7	1.8	0.5	−1.1	−3.3	−3.3	−5.4
8	1.3	0.1	−1.5	−3.5	−3.3	−5.5
9	0.6	0.0	−1.7	−3.4	−3.2	−5.9
10	0.2	0.2	−1.5	−3.6	−3.4	−5.9
11	0.5	−0.1	−1.7	−3.6	−3.4	−5.9
12	0.6	0.3	−1.1	−3.1	−2.9	−4.8
13	0.5	1.8	0.5	−1.9	−1.5	−2.9
14	0.9	3.6	2.3	0.1	−0.2	−2.2
15	2.3	6.9	4.6	1.8	1.7	−1.3
16	4.1	7.6	6.1	3.1	4.0	0.2
17	5.4	8.5	8.1	3.7	4.2	1.0
18	7.0	5.7	6.0	3.5	5.6	0.7
19	6.8	4.8	4.3	2.6	3.9	−0.9
20	4.8	3.6	2.3	−0.2	−0.1	−2.4
21	4.4	3.1	1.7	−1.0	−0.7	−3.0
22	3.3	1.6	0.5	−1.9	−1.8	−4.3
23	2.8	0.9	−0.8	−2.9	−2.8	−5.4
Mean	2.7	2.5	1.1	−1.2	−0.9	−3.6
ST DEV	1.9	2.5	2.8	2.4	2.7	2.1