Thursday, 22 September 2011

Hydrologist vs. nature… PART II

Hydrologist and nature…

The first tries to understand the other. The other neglects or makes use of the other. Once instruments are installed in the field (fresh new material) it doesn’t take long until nature takes over.

 
This time the damage isn’t from insects but from bored cows. It seems when humans are gone and it rains*. 
Cows are bored and going to the fenced tipping buckets. They play with the loggers, flossing their teeth with cables and use sequential sampler tubes as chewing gum. Last year we never had problems and the barbed fence worked perfectly. However one year later the cows grew and just reached the r-gauge. 

*We know it was during the event because one bottle from the sequential sampler was full. The others empty :S


Rain gauge 9266 with signs of distruction
Broken tipping bucket cable with


Hydrologist vs. nature ... PART 1

Hydrologist and nature…

The first tries to understand the other. The other neglects or makes use of the other.
Once instruments are installed in the field (fresh new material) it doesn’t take long until nature takes over. Rain gauges are a popular penthouse for Earwigs or Spiders. Once moved in they play with the tipping bucket, hopping up and down. Excrement is sealing the funnel opening and spoiling data.

Davis tipping bucket full of Earwigs

Full of ...dropings

A dead Earwig


Thursday, 25 August 2011

Macropore?