Soil Information Page.

METRIC | IMPERIAL

Grass Temperature Readings.
Sensor/Depth	Now	Daily High	Daily Low	September High	September Low	2019 High	2019 Low	All Time Record High	All Time Record Low
Sensor 1 at 0 cm	19.4°C	-100.0°C 16:00	100.0°C 00:52	19.4°C 01-Sep	19.4°C 16-Sep	29.4°C 19-Apr	-2.8°C 31-Jan	50.6°C 30-Jun-15	-6.1°C 01-Jan-70

Soil Temperature Readings.
Sensor/Depth	Now	Daily High	Daily Low	September High	September Low	2019 High	2019 Low	All Time Record High	All Time Record Low
Sensor 1 at 10 cm	16°C	17°C	13°C	26.7°C 01-Sep	10.0°C 08-Sep	28.9°C 29-Jun	-0.6°C 31-Jan	66.7°C 09-Dec-18	-0.6°C 01-Jan-70
Sensor 2 at 20 cm	16°C	17.2°C	16.1°C	18.3°C 01-Sep	15.0°C 08-Sep	21.1°C 29-Jun	2.8°C 03-Feb	69.4°C 09-Dec-18	0.0°C 01-Jan-70
Sensor 3 at 30 cm	16°C	16.7°C	16.1°C	17.8°C 01-Sep	15.0°C 08-Sep	19.4°C 25-Jul	3.3°C 03-Feb	20.6°C 26-Jul-14	-34.4°C 01-Jan-70
Sensor 4 at 50 cm	16°C	16.1°C	16.1°C	17.2°C 01-Sep	15.6°C 11-Sep	18.3°C 24-Jul	5.0°C 02-Feb	69.4°C 09-Dec-18	0.0°C 01-Jan-70

Soil Moisture Readings.
Sensor/Depth	Now	Daily High	Daily Low
Sensor 1 at 10cm	96.0cb	96.0cb	89.0cb
Sensor 2 at 20cm	108.0cb	114.0cb	108.0cb
Sensor 3 at 30cm	200.0cb	200.0cb	200.0cb
Sensor 4 at 50cm	200.0cb	200.0cb	200.0cb

Centibar Reading	Soil Condition
The centibar* (cb) is an agricultural unit of soil water tension (water pressure on plant roots)*
0-10	Saturated Soil. Occurs for a day or two after rain or irrigation.
11-30	Soil is adequately wet (except coarse sands which are drying out at this range).
31-60	Usual range to water (except heavy clay soils). Water at the upper end of this range in cool humid climates and with higher water-holding capacity.
61-100	Usual range to irrigate heavy clay soils.
101-200	Soil is becoming dangerously dry for maximum production.

Additional Observations
Conditions	Current	7-Day	September	2019
Evapotranspiration	1.8 mm	17.1 mm	41.3 mm	694.2 mm
Rainfall	0.0 mm	0.8 mm	17.6 mm	406.2 mm

ET describes the sum of evaporation and plant transpiration from the surface to the atmosphere. Evaporation is the movement of water to the air from the soil, canopy interception, and water bodies. Transpiration is the movement of water within a plant and the subsequent loss of water as vapour through stomata in its leaves.

Irrigation Index¹
Current	7-Day	September	2019
-1.8 mm	-16.3 mm	-23.7 mm	-288 mm

¹Estimated amount of water needed to replace the water used by plants and evaporation. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).

The 7-Day Index (-16.3mm) is a very useful and accurate guide used to determine how much water is needed to maintain your plants. It is derived by taking the last 7 days of rainfall (0.8 mm) minus the last 7-Day ET (17.1 mm), measured by Gosport Weather. The index represents the amount of water needed to replace that lost by ET over the last week. (A positive 7-Day Index means excess water is present).

Precip amounts of 0.2mm (0.01in) are indicative of dew, frost, mist, fog, or a very brief shower.

Information

Determine your soil composition: Soil Survey

Soil / Grass conditions are monitored by a Davis Soil Moisture/Temperature Station and Extra Temperature Station. The combined station is comprised of an anemometer, barometer, temperature and humidity sensors, rain gauge, solar radiation sensor, UV sensor, 1 thermo sensor (measuring grass temp), 1 leaf wetness sensor, 4 soil moisture sensors, and 4 thermo sensors positioned in the soil (measuring ground temps and providing soil moisture condition). Evapotranspiration and Irrigation values are calculated using Weather Display.