Friday, August 17, 2018

24-hour Temperature and Relative Humidity for NearSys Station, 15 August 2018

I built a sunshield for the Amprobe temperature and relative humidity datalogger. So these data were recorded in the backyard. Interesting temperature spike and abrupt drop in the relative humidity near midnight.

Sunday, August 12, 2018

UAVSonde Data for NearSys Station, 11 August 2018

I launched the UAVSonde at 8:25 PM MST. Here are the conditions measured during the flight.

In the surface,
Temperature: 93.2 *F
Relative Humidity: 15.6%

At 400 feet AGL,
Temperature: 87.0 *F
Relative Humidity: 44.6%

The visibility was at around five miles.





Sunset in Smoky Skies

Last week, I took a sequence of pictures of the setting sun. And boy was it smoky on the 3rd.

Wednesday, August 1, 2018

July Monthly Weather for NearSys Station

Below are the charts I generated for the weather conditions at NearSys Station.

The ground temperature has continued to rise as heat from the air above flows into the ground.

No precipitation in the month of July.

High pressure has dominated.

The afternoon relative humidity has stayed comfortable in the 25% range.

The air temperature has changed very little this month. We are at above average temperatures for the month of July.

Tuesday, July 31, 2018

24 Hour Temperature and Relative Humidity for NearSys Station, 29 July 2018

Temperature and relative humidity was collected on the front porch for 24 hours. Below are the results.

Changes in Temperature and Relative Humidity at Flight Level 4 AGL

On the 29th, the UAVSonde was launched three times to collect air temperature and relative humidity data. The data show the air temperature remaining nearly constant on the ground until the late afternoon. The air temperature aloft increased significantly in the late afternoon. This unexpect result means I need to refly this mission again and with more flights.

The relative humidity on the ground decreased through out the day; but aloft, it increased slightly by evening.

Visibility for NearSys Station, 29 July 2018

The UAVSonde was launched three times on the 29th to evaluate how the visibility and conditions at flight level 4 changes over a 12 hour period.

In the morning, the visibility was in excess of 30 miles, but less than 50. By 8:00 PM MDT, the visibility had increased to right at 50 miles. This is because the warmth of the day had lifted the smoke infiltrating the Treasure Valley.