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# Earth Science problem

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I've no idea how to start this question, please take a look.

Thanks very much.:)

Daily cycle in the surface energy balance

The surface energy balance states that

Q¤ = QH + QE + QG

a) give a brief interpretation1

:Glasses: compute these 24 hour totals2

– transfer of sensible heat to the atmosphere in [Jm¡2]

– transfer of latent heat to the atmosphere in [Jm¡2]

– transfer of water to the atmosphere expressed in [kgm¡2]

– equivalent loss of stored soil liquid water expressed in [mmm¡2] (note: the conversion factor is the density of liquid water, i.e. 1000 kgm¡3)

Table 1: Daily cycle in hourly-averaged energy balance components over grassland in Alberta.

1 July 2003. (All fluxes in W m¡2; data courtesy of Dr. L. Flanagan; file flanagan.txt)

hour Q¤ QG QH QE

1 -77 -17 -117 23

2 -68 -17 -67 11

3 -38 -25 2 -2

4 -37 -29 2 -2

5 -31 -27 -5 -1

6 34 -19 -26 2

7 134 -4 3 72

8 262 13 42 136

9 312 28 60 212

10 438 31 99 272

11 518 45 162 315

12 632 65 213 316

13 633 68 208 339

14 595 61 200 347

15 563 54 167 337

16 347 34 73 278

17 311 28 53 230

18 209 13 -35 139

19 81 1 -52 111

20 -15 -5 -44 55

21 -62 -11 -103 23

22 -63 -14 -106 17

23 -62 -14 -77 12

0 -66 -15 -101 19

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