dmatt logbook @ Onion Valley 10/17/07

[dmatt]

I THOUGHT SOME OF YOU MIGHT BE INTERESTED IN MY DAILY LOGBOOK FOR THE ONION VALLEY AREA TODAY. THIS IS IN CONJUNCTION WITH A PROJECT I AM DOING TO MEASURE LEVELS OF PM-10 IN MORE REMOTE AREAS IN AND AROUND THE TOWN OF INDEPENDENCE. THE MEASUREMENT CYCLE FOR ONION VALLEY AND LOWER POTHOLE LAKE IS BI-WEEKLY. IT SHOULD GIVE YOU A GOOD IDEA OF THE WEATHER CONDITIONS TODAY IN THE AREA.

DATE: 10/17/07

PROJECT PERIOD: 01 JUN – 31 OCT

FIELD EQUIPMENT USED:

1 EA. KESTREL 4500 WEATHER TRACKER
1 EA. THERMO ELECTRON pDR-1000 DATA RAM
1 EA. IRIDIUM 9505a SATELLITE PHONE

ARRIVED AT ONION VALLEY AT 11:03 AM; ONLY 3 VEHICLES IN PARKING LOT, ONE OF WHICH WAS AS CALIFORNIA DEPT. OF FISH AND GAME TRUCK. WEATHER VERY NICE FOR MID OCTOBER AFTER A STORM. CURRENT WEATHER CONDITIONS:

MOSTLY CLEAR
TEMP 43 DEGREES F
WIND SP / 8 - 12 G 18
WIND DR / NW
PM-10 0.0023 ug/m3
1-2 INCHES OF NEW SNOW HAS FALLEN LAST NIGHT/EARLY THIS MORNING.

STARTED UP THE TRAIL TOWARDS LOWER POTHOLE LAKE (USED AS A PM-10 MEASUREMENT POINT) AND NEAR THE JUNCTION OF THE MAIN TRAIL AND GOLDEN TROUT LAKES TRAIL SIGHTED A YOUNG BOBCAT ALREADY STARTING A GOOD WINTER COAT. SPOTTY SNOW ON TRIAL IN SHADED AREAS SHOWED BOOT TRACKS INDICATING ONE TREKKER AHEAD OF ME SOMETIME EARLIER THIS MORNING. REACHED LOWER POTHOLE LAKE AT 11:39 AM; LAKE CLEAR OF ICE EXCEPT FOR SHADED AREAS ALONG THE EDGE; CURRENT WEATHER CONDITIONS:

MOSTLY CLEAR
TEMP 39 DEGREES F
WIND SP / 7 - 15 G 21
WIND DR / W
PM-10 0.0009 ug/m3

HEADED BACK DOWN TO THE PARKING LOT AT 11:47 AM; SAW NO ONE ON THE TRAIL EITHER WAY; ARRIVED AT ONION VALLEY PARKING LOT AT AROUND 12:15 PM.

DMATT/