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December 2019 Newsletter
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Opening Hours
Sales and Technical Support teams will be available on all days except for public holidays (December 25th-26th, January 1st-2nd). Our Production, Accounts and Admin teams will be closing down from December 23rd - January 6th.

We would like to wish everyone a Meri Kirihimete from all of us here at Harvest, and we hope you have a relaxing and enjoyable holiday season with friends, food and family.
Labels for Soil Moisture and Sensor Locations
We have labels available for both soil moisture and sensor locations. These can be helpful for identifying locations of hidden/buried sensor or for differentiating between sensors at different locations. These are provided free of charge, let us know if you would like some sent to you. 
Sunshine Hours
We can use a solar radiation sensor to monitor irradiance, which can be used to calculate sunshine hours. Sunshine hours or sunshine duration is a climatological indicator, measuring the duration of sunshine in a given period, usually over a day or a year for a given location on Earth. The number of sunshine hours achieved over a period can be considered as an indicator for the cloudiness of a location.

Sunshine hours are defined as the total number of hours in which the direct solar irradiance exceeds a threshold of 120 Watts/m². The formula that we use to determine the sunshine hours for a given location was developed by Campbell Scientific. Contact us to have sunshine hours added to your Harvest site or for more information. 
Australian Apparent (Feels Like) Temperature
The Australian Bureau of Meteorology, using a model developed by the US Navy, researched and then developed their own formula, the Australian Apparent Temperature. The apparent temperature, invented in the late 1970's, was designed to measure thermal sensation in indoor conditions. It was extended in the early 1980's to include the effect of sun and wind. The formula includes the important factor of humidity and is somewhat more involved than the simpler North American model. The North American formula was designed to be applied at low temperatures (as low as −46 °C), when humidity levels are also low.  You can see the formula on our calculations page.

Feels Like Temperature can be calculated with a Wind Speed/Direction sensor and a Temperature/Humidity sensor. Contact us if you would like this added to your Harvest site or if you would like any more information. 
Contact Us

Harvest Wind Machine Monitoring has given me peace of mind around one of our wind machines that is in a cold spot. Now I get a phone call for frost warnings as well as when each wind machine starts and stops so I can be sure that they are going when they need to be."

- Shav, Tetley Brook Estate
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