Visibility for NearSys Station, 28 December 2019

I launched the UAVSonde at around 1:45 PM today. The visibility is just 50 miles, not much farther.

Interesting to see how the clouds visible from the flight were over the Owyhee Mountains (south of NearSys Station).

North

West

South -Rabbit Island is the large island in the Snake River

East

Air Quality for NearSys Station, 20 - 27 December 2019

Purple Air may have changed the reporting they do or I might have accidentally hit on a different report. Anyhow, I only reported on the particulate matter I normally do.

Odd how the 1.0 micron particulate matter concentration was so high. I now we have had fires recently, I wonder if they are the source. At least the 2.5 micron particulate matter wasn't dangerously concentrated.

Air Quality for NearSys Station, 13 - 20 December 2019

What with the holidays, I haven't been keeping up with pisting my data results. So here goes last week's air quality report.

We barely reached the warning level last week when it came to 2.5 micron particulate matter.

Air Quality for NearSys Station, 6 - 13 December 2019

Our air quality was mostly good (or green) this week. We experienced very few times in the unhealthy or dangerous level.

24-Hour Photometer for NearSys Station, 15 December 2019

Sunday was off and on clouds. So the photometer recorded the sun drifting in and out of clouds all day. Notice the funny spikiness between noon and 2:00 PM, for example.

Visibility for NearSys Station, 15 December 2019

We had low level haze and clouds that limited visibility on Sunday morning. Visibility was greater than 30 miles and barely 50 miles. However, it was only mountain tops that were visible 50 miles away (and barely at that).

North

West

South

East

Visibility for NearSys Station, 9 December 2019

The visibility is much better this week, since the inversion broke. However, I launched the drone late after work, so the images are around sunset.

North

West

South

East

Air Quality for NearSys Station, 1 - 7 December 2019

The worst of the inversion has broken, but we still have unhealthy air. Our diurnal temperature variation is reduced this week. I need to make sure there isn't a problem with the sensor.

24-Hour Photometer for NearSys Station, 9 December 2019

A sunny day until 12:00 to 14:00 hours. Low sun elevation and therefore, not very intense sunlight compared to summer. Also, the photometer shows the daylight hours are shorter now than they were in summer.

24-Hour Temperature and Relative Humidity for NearSys Station, 9 December 2019

Our night-time lows are dropping below freezing. As a result, the relative humidity is reaching 100%. Over 24 hours, the air temperature dropped by roughly 10 degrees Fahrenheit.

24-Hour Temperature and Relative Humidity for NearSys Station, 1 December 2019

It rained and snowed (lightly). So a rather cool and damp day on Sunday. The datalogger shows just how damp it got. The temperature actually rose slightly through out the day.

24-Hour All-Sky Photometer for NearSys Station, 1 December 2019

It was cloudy and windy all day. So no direct sunlight reached the surface all day Sunday.

Weather Report at NearSys Station for November 2019

The air temperature held steady for most of the month as did the relative humidity. The ground temperature reached its peak as the intensity of sunlight continues to decrease. We experienced high air pressure early in the month, but it decreased closer to the end of the month. 

Air Quality for NearSys Station, 15 - 23 November 2019

The air quality has been in the good category for the majority of the week. There were three instances of the air quality getting into the unhealthy category. However, they were brief.

24-Hour Photometer for NearSys Station, 16 November 2019

We had clear skies all day. So no drops in sky intensity due to clouds. However, there still is that midmorning and afternoon peak in a few channels.

Air Quality for nearsys Station, 8 - 16 November 2019

The air quality was more dangerous this week the larger the particulate matter's diameter. We were in the green all week but 1.0 micron, got into the yellow for 2.5 micron, and into the red for 10.0 micron particles.