| 1、Forest
microclimate index |
Unit
|
Frequency
|
| (1)Weather
condition index |
|
|
| Clear, overcast, cloudy,
wind, rain, snow,atmospheric pressure |
hPa
|
daily
|
| (2)Wind-force
and wind direction index |
|
|
| Canopy surface wind-speed |
m/s
|
hourly
|
| Canopy surface wind-direction |
E,S,W,N
|
3m up canopy
|
| (3)Air
temperature index |
|
|
| Air minimum temperature |
℃
|
daily
|
| Air maximum temperature |
℃
|
daily
|
| Air fixed time temperature |
℃
|
daily
|
| (4)Surface
and soil temperature index |
|
|
| Surface fixed time temperature |
℃
|
hourly
|
| Surface minimum |
℃
|
hourly
|
| Surface maximum |
℃
|
hourly
|
| Soil temperature 10cm |
℃
|
hourly
|
| Soil temperature 20cm |
℃
|
hourly
|
| Soil temperature 30cm |
℃
|
hourly
|
| Soil temperature 40cm |
℃
|
hourly
|
| Frozen soil |
cm
|
annual
|
| (5)Air
humidity index |
|
|
| Relative humidity |
%
|
hourly
|
| Rainfall(total) |
mm
|
Continuous observation
|
| rainfall intensity |
mm/hour
|
Continuous observation
|
| evaporation |
mm
|
daily
|
| (6)Radiation
index |
|
|
| Solar radiation |
MJ/m2
|
hourly
|
| Net radiation |
MJ/m2
|
hourly
|
| Spectroradiometry radiation |
MJ/m2
|
hourly
|
| possible duration of
sunshine |
hour
|
daily
|
| UVA/UVB radiation |
MJ/m2
|
Once every month
|
