Saturday, November 16, 2019

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.


Friday, November 15, 2019

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.






Sleep Study

I thought I'd measure my body function during sleep. So I got a recording Oximeter (similar to this one) to record dissolved oxygen in my blood and pulse rate plus a respiration sensor from Vernier (this one).

I found out that when your pulse rate quickly fluctuates during the night, you're most likely in REM sleep. So looking at the red line, I see what I think are three or four instances of REM sleep.

Oxygen levels appear to remain high but seem to fluctuate the most during REM sleep. However, the amount of fluctuation is not as great as that seen in pulse rate.

The respiration belt saves data to an app on my cellphone via Bluetooth, but the cellphone can't run the app all night without locking up. I will test running the app on a laptop next time to see if I can record data all night. However, from the nearly four hours of data that I can record, I can see a correlation between respiration rate and heart rate. I imagine that your heart needs more oxygen when you dream.

I think I'll try adding a temperature logger next. However, I'll need to find a way to attach it without my rolling over effecting the reading. So perhaps to the top of my head?

       

Sunday, November 10, 2019

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

A warmer air mass has moved in. Notice the temperature is warmer at the end of the recording period than at the beginning. The relative humidity is lower, also.


Saturday, November 9, 2019

24-Hour Photometer for NearSys Station, 9 November 2019

It has been a hazy week. The visibility is poor, but the inversion isn't so high that sunlight can't reach the ground.



Visibility for NearSys Station, 9 November 2019

The visibility is very poor. It might be no greater than 10 miles. The UAVSonde hasn't returned images this poor all year.

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Air Quality for NearSys Station, 1 -7 November 2019

Our air quality has been bad this week. A high pressure system has created a temperature inversion and is holding in all the smoke and haze over the western Treasure Valley in Idaho.

The concentration of PM 1.0 is acceptable, but 2.5 and 10.0 is in the yellow and red categories. I hope a cold front will come through before long and scour out the valley. Meanwhile, sunsets will continue to be hazy orange.






Monday, November 4, 2019

24-Hour Temperature and Relative Humidity for NearSys Station, 3 November 2019

Looking at the chart below, I see that warmer and drier air moved in over the 24 hour period. The temperature is warmer after 24 hours. Also, the relative humidity is lower for the same air temperature.

That's nice, as we've had below average temperatures for the last part of October.


Sunday, November 3, 2019

24-Hour Photometer for NearSys Station, 3 November 2019

A hazy day. However, the sun never disappeared behind any clouds.


Visibility for NearSys Station, 3 November 2019

Finally a light-wind weekend. I was able to launch the drone early this afternoon and see how bad the visibility is. We're under high pressure and it appears to be holding in all the smoke and haze. The images below show the visibility is only on the order to 30 miles.

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Wednesday, October 30, 2019

Air Quality for NearSys Station, 18 - 25 October 2019

We had two brief excursions into bad air quality last week. Otherwise, good air all around.







24-Hour Photometer for NearSys Station, 26 October 2019

We had a very clear day on Saturday. I think that explains why the sunlight was so intense in the afternoon - there was no haze or clouds to scatter the sunlight. However, I don't know why the afternoon shows so much fluctuation in sky brightness intensity.


Monday, October 28, 2019

24-Hour Temperature and Relative Humidity for NearSys Station, 26 October 2019

We had strong winds on Saturday morning. So the sun shield was blown over and exposed the datalogger for a while. We experienced an odd pulse in relative humidity shortly after midnight.


Monday, October 21, 2019

Visibility for NearSys Station, 20 October 2019

Visibility at NearSys was 50 miles Sunday afternoon, but just barely.

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24-Hour Photometer for NearSys Station, 19 October 2019

Winds at about 1:00 PM blew over the photometer. So there's a drop in sky brightness starting at about that time. I was able to flip it back over at 4:00 PM.




24-Hour Temperature and Relative Humidity for NearSys Station, 19 October 2019

Wind speeds picked up during the day and blew over the datalogger and its sun shield (starting at around 7:00 AM). So there's an unusual spike in the temperature until I got home to flip it back over.

 

Friday, October 18, 2019

Air Quality for NearSys Station, 11 - 18 October 2019

By and large, the air quality remained good all week. NearSys Station experienced one momentary excursion into the yellow category (between 50 and 100 micrograms per cubic meter) and two into the red category (above 100).






Sunday, October 13, 2019

Air Quality for NearSys Station, 4 October to 11 October

Air quality was in the green category for this week except for five excursions into the yellow. One of those excursions took the air quality into the red category.






Visibility for NearSys Station, 13 October 2019

Low altitude haze is responsible for our visibility barely reaching 50 miles.

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