1)
Site
3: 5/10/02
Arrival: 1015
Departure: 1600
Conditions: heavy overcast, very
windy
-Site 3 PAM station radiometers cleaned with ‘kim
wipes’ at 1315 – domes intact, net radiometer level, and all domes relatively
free from debris though some dust was on surface.
-CU flux station (for site 10) placed at site 3 for
cross calibration approximately 35 m WSW (221 degrees) of the site 3 PAM
station (elevation of CU station placement approximately 1m lower elevation
than site 3 PAM station).
-The sonic anemometer and krypton hygrometer on the
CU flux station oriented to face true north per the instruction of Dr. Blanken.
However, since the dominant winds in the region are from the south, when the
tower is relocated to Site 10 these instruments will be oriented facing east.
The pyrometer and net radiometer are facing south and the IR thermometer is
monitoring surface temperature to the southeast of the tower.
- The soil measurements associated with the CU flux
station are taken such that the CS615 probes collect soil moisture content at
5, 7.5, and 15cm; the pair of soil heat flux plates are placed on either side
of the CS615s at a distance of 10cm from center and at a depth of 5cm; the soil
temperature probe (not functional) is placed directly above the column of CS615
at a depth 2.5cm. The entire collection of sensors is located to the south west
of the tower just outside the view of the net radiometer.
-CU flux station soil temperature sensor not functional due to missing resistor.
2)
Site
3: 5/11/02
Arrival: 1000
Departure: 1140
Conditions: partly cloudy, windy
-Soil heat flux sensor 1 connection loose, therefore
no data logged for that parameter for the preceding 24 hours. Cause: loose wire, corrected by Joe Alfieri
-Soil temperature probe 10 Ohm resistor installed,
probe still not functional. Cause: 100
Ohm resistor required instead of 10 Ohm resistor -> to be installed on
5/18/02 when CU flux station is moved to Site 10.
-CU flux tower net radiometer leveled, pyrometer
leveled, and surface IR temperature sensor knob adjusted 100% clockwise for
proper adjustment of emissivity of 1.
-Photographs taken of both Site 3 PAM flux station
and CU flux station as well as Site 3 landscape in 4 cardinal directions.
3)
Site
9: 5/14/02
Arrival: 1535
Departure: 1930
Conditions: mostly sunny, light wind
-2 land surface characterization transects selected
(i)
Western
transect begins approximately 20m west of PAM radiometer instrumentation and
extends for 20m – beginning and end of transect marked with blue flags
(ii)
Southern
transect begins approximately 20m south of PAM radiometer instrumentation and
extends for 20m – beginning is marked with a blue flag and end is marked with a
green flag
-Assistance provided to Tom Horst to lower flux
station mast for service
4)
Site
6: 5/15/02
Arrival: 1200
Departure: early afternoon
-No maintenance or measurements performed, only
visited site for survey with David Yates to discuss surface characterization
sampling method
5)
Site
7: 5/15/02
Arrival: mid-afternoon
Departure: mid-afternoon
-No maintenance or measurements performed, only
visited site for survey with David Yates to discuss surface characterization
and sampling method
6)
Site
9: 5/16/02
Arrival: 1017
Departure: 1400
Conditions: heavy overcast, moderate SE winds
-Radiometers cleaned at 1318, relatively free of
debris prior to cleaning though some dust present
-
One
of the thin black wires leading to Profiler 9 found to have a cut in the
sheathing. The wire was repaired and flagged with electrical tape.
Additionally, one of the heavy black wires leading to profiler 9 was found to
be severed and could not be repaired.
-
One
of the thin black wires leading to Profiler 8 was found to have a cut in the
sheathing. The wire was repaired and flagged with electrical tape.
-Surface characterization measurements taken:
(i)
IR
surface temperature distribution with vegetation height in field of view of
Site 9 flux station IR temperature instrument
(ii)
IR
surface temperature distribution with vegetation height in field of view of
Site 9 flux station IR temperature instrument; 4 samples taken at two different
times
(iii)
Gravimetric
soil core taken at 1122 approximately 5m west of radiometer instrumentation
just outside perimeter of ‘cow fencer’ next to the fourth ‘cow fencer’ post
from the right of the fencer entrance gate.
(iv)
IR
surface temperature distribution with vegetation height taken on western
transect every 5m for 20m including endpoints
(v)
IR
surface temperature distribution with vegetation height taken on southern
transect every 5m for 20m including endpoints
(vi)
Leaf
area index measured along the western transect every 5m for 20m including end
points.
(vii)
Leaf
area index measure along the southern transect every 5m for 200m including the
endpoints.
(viii)
Trime
measurements taken next to each of the soil profilers and the site where the
soil core was taken.
(ix)
Trime
measurements taken along the western transect every 5m for 20m including
endpoints.
(x)
Trime
measurements taken along the southern transect every 5m for20m including the
endpoints.
(xi)
Photographs
of the site taken in each of the cardinal directions; additional images of
selected vegetation taken.
(xii)
MSR
could not be collected due to heavy overcast weather conditions.
(xiii)
Representative
plants for porometry chosen within the fencer; vegetation along the transects
is subject to grazing.
(xiv)
Xylem
potential attempted on two of same species as the porometry will be collected.
However, due to either the free flowing nature of the sap and/or the
architecture of the plant, data collection is not feasible.
7)
Site
8: 5/16/02
Arrival: 14:05
Departure: 1600
Conditions: heavy overcast, very light SE breeze,
moderate rain fell for about ten minutes around 1535
-IR surface temperature distribution with vegetation
height taken in field of view of Site 8 flux station IR temperature sensor just
outside of cow fencer (about 3m north of fencer)
-Site 8 radiometers cleaned at 1449, some debris
accumulated prior to cleaning. ***Top
dome of net radiometer had small crack on lower edge at ‘2 o’clock’ orientation
for observer facing north***
-Swapped storage card #5 for storage card #1 (also
marked 04/02) and delivered to ISSF trailer
-Gravimetric soil core taken at 1530
-2 land surface characterization transects selected
(i)
Western
transect begins approximately 30m west of radiometer instrumentation and
extends for 20m – beginning and end of transect marked with blue flags
(ii)
Southern
transect begins approximately 20m south of radiometer instrumentation and
extends for 20m – beginning and end of transect marked with blue flags
-
Photographs
in the cardinal directions, selected vegetation, and transects taken.
-
Trime
measurements taken next to the soil profiler and where the core sample was
collected.
8)
Site
7: 5/16/02
Arrival: 1550
Departure: 1705
Conditions: heavy overcast, light NE winds, light
‘sprinkle of rain for about ten minutes at 1705
-Radiometers cleaned at 1700, some dust on domes
prior to cleaning
-Gravimetric soil core taken at 1654
-Cuttings of the representative species to be used
for porometry were taken for identification purposes.
9)
Site
6: 5/17/02
Arrival: 1530
Departure: 2015
Conditions: sunny, very few isolated clouds, light
to moderate wind NNE
-Radiometers cleaned at 1721; domes appeared free of
debris – net radiometer level.
-Single surface characterization transect selected
beginning about 40m north of Site 6 flux station solar panel array, extending
for 45m with every 5m marked with orange flags denoting sampling point
(including endpoints)
-Gravimetric soil core taken at 1736 about 5 m west
of solar panel array
-IR surface temperature distribution with vegetation
height taken in field of view of Site 6 flux station IR temperature sensor
(about 3m north of flux station tripod); 4 samples taken at 2 different times
-IR surface temperature distribution with vegetation
height taken along surface characterization transect of Site 6
-Digital photos of 4cardinal directions taken at
1917
-Photographs of the 4 cardinal directions taken.
-LAI and MSR measurements taken of sampling transect
as well as in field of view of PAM flux tower IR view.
10)
Site
3: 5/18/02
Arrival: 1221
Departure: 1840
Conditions: clear with few cirrus clouds to the NW,
SSE winds light to moderate
Observers: JA & JU
-Began disassembly of CU flux station after data
download. Due to a “hiccup” with the software the data was downloaded via
laptop. This appears to have reset the program as follow-up test downloads to
the SM4 storage module have proceeded as normal.
-Digital pictures of Site 3 four cardinal directions
taken at ~1453
-Surface characterization transects selected:
(i)
western
transect beginning located 20m north and 20m west of solar panel array (NW
corner of fencer), extends for 20m and is marked by orange flags every 5m
(ii)
southern
transect beginning located 20m south of flux tower cow fencer directly south of
net radiometer, extends 20m and is marked with orange flags every 5m
11)
Site
10: 5/18/02
Arrival: 1850
Departure: 2209
Conditions: Clear, moderate south wind
Observers: JU & JA
-Installation of CU flux station, located 155m SW of
NE corner of quarter section (original GPS coordinates). The final coordinates
for the site 10 flux tower are:
N 36deg 53.481 W 100deg 36.273.
12)
Site
10: 5/19/02
Arrival: 1052
Departure: 1825
Conditions: Clear, strong South wind
Observers: JA & JU
-Installation of the CU flux station completed. All
instrumentation, including the data download process, was tested and found to
be working well except soil heat flux plate 2. This plate was observed to give
erratic and incorrect reading do to a fracture in its housing and will need to
be replaced.
-Further the soil instrumentation was arranged as
follows:
CS615 soil moisture probes at 5, 10, and 15cm
Soil heat flux plates are placed 20cm apart centered
on the column of CS615s; the plates are at a depth of 5cm.
The soil temperature probe was placed at a depth of
2.5cm directly above the CS615s.
The ground at this site is very hard and the depth
utilized was the maximum that could be reasonable dug. Additionally, since the
ground breaks up into large, very hard clods that do not crumble easily (every
attempt was made to break them up) the coarseness of the soil used to bury the
soil instrumentation may effect initial measurements.
-Also, for consistence with the NCAR flux-PAM
stations, the orientation of the eddy flux instruments was adjusted. The sonic
anemometer and krypton hygrometer are oriented facing East to better catch the
dominant southerly winds. The net radiometer faces due south and the IR thermometer
to the west.
-Surface Characterization transects selected:
(i)
western
transect begins 20m north and 10m west of NW fender post (corner post), extends
20m to the west and is marked by orange flags every 5m
(ii)
southern
transect begins 20m directly south of southern center fencer post (7m south of
flux tower), extends for 20m, marked with orange flags every 5m
-Surface Characterization:
(i)
Gravimetric
soil core sample collected due west of the station, just outside the fence
perimeter.
(ii)
Trime
measurements taken next to soil moisture profiler and soil core, as well as
along western and southern transects.
(iii)
IR
surface temperature distribution with vegetation height taken in field of view
of flux tower IR instrument, 4 samples taken at 2 different times. IR surface
temperature measurements also taken along western and southern transects
(distribution with vegetation height not measured on transects because
vegetation height insignificant).
(iv)
MSR
readings taken along western and southern transects as well as in field of view
of flux tower IR instrument.
(v)
LAI
measurements taken. While the bases of
the vegetation appear dead and dry, this will serve as a baseline if there is
future regrowth.
(vi)
NO
porometry sampled due to small size of vegetation since no green vegetation was
present.
(vii)
NO
xylem potential measured since grass internal architecture does not work with
this procedure
(viii)
Photographs
taken of 4 cardinal, the tower setup and surface. Digital photos taken of 4
cardinal directions and along western and southern transect.
13)
Site
1: 5/20/02
Arrival:1019
Departure: 1335
Conditions: clear, few high cirrus clouds, wind
strong from SSW
Observers: JU & JA
-Site 1 radiometers cleaned @ 1219, no damage or
significant debris (only light dust)
-storage media flash card recording lights checked,
top light: off, 2nd from top light: flashing, bottom 2 lights solid
– equipment recording properly.
-Surface Characterization transects selected
(i)
western
transect begins 20m west of radiometer ‘saw horse’ and extends for 20m, marked
by orange flags every 5m
(ii)
southern
transect begins 20m south of radiometer ‘saw horse’ and extends for 20m, marked
by orange flags every 5m
-Surface Characterization:
(i)
Gravimetric
soil core sample collected 5m west of
the solar panels at 1100.
(ii)
Trime
samples taken next to 3 soil moisture profiler locations and soil core sample
location as well as along western and southern transects
(iii)
IR surface temperature
taken in field of view of Site 1 PAM IR temperature instrument: 4 samples taken
at 2 different times – no vegetation present to measure such IR temp
distribution with height. IR surface temperature also taken along western and
southern transects.
(iv)
MSR
measurements taken in field of view for flux tower IR temperature sensor as
well as along western and southern transects
(v)
NO
LAI taken due to absence of vegetation
(vi)
NO
porometry measurements due to absence of vegetation
(vii)
NO
xylem potential measurements taken due to lack of vegetation
(viii)
Photographs
taken of 4 cardinal direction . Digital photographs taken of 4 cardinal directions
as well as along western and southern transects
14)
Site
2: 5/20/02
Arrival: 1409
Departure: 1901
Conditions: sunny, scattered cumulus to NW, strong
SSW winds
Observers: JA & JU
-Radiometers cleaned and level
checked at 1620 (?).
-Surface Characterization
transects selected:
(i)
western
transect begins 25m west of Site 2 radiometer ‘saw horse’, extends for 20m and
is marked by orange flags every 5m
(ii)
southern
transect begins 20m south of radiometer ‘saw horse’, extends for 20m and is
marked with orange flags every 5m
-Surface Characterization:
(i) Gravimetric soil core sample collected 10m west of the radiometer “sawhorses” at
1447.
(iii)
Trime
measurements taken next to soil moisture profiler and soil core, as well as
along western and southern transects.
(iv)
IR
surface temperature distribution with vegetation height taken in field of view
of flux tower IR instrument, 4 samples taken at 2 different times. IR surface
temperature distribution with vegetation height also taken along western and
southern transects
(v)
MSR
readings taken along western and southern transects as well as in field of view
of flux tower IR instrument.
(vi)
LAI
measurements taken in field of view of flux tower IR instrument as well as
along western and southern transects
(vii)
Porometry
data lost due to improper baud rate during download – information garbled and
deleted from storage device
(viii)
NO
xylem potential measured since dominant ‘vine-weed’ vegetation not compatible
with this procedure
(ix)
Photographs
taken of 4 cardinal directions and of the “vineweed”.
(x)
Digital
photos taken of 4 cardinal directions and along western and southern transect.
15) Site 3: 5/20/02
Arrival: 1952
Departure: 2030
Conditions: partly cloudy, moderate south winds
Observers: JU & JA
-LAI taken in Site 3 PAM flux tower IR instrument
field of view as well as along western and southern transects
16) Site 3: 5/21/02
Arrival: 1200
Departure: 1628
Conditions: Sunny, light SSW wind increasing to
strong SSW wind as day progressed
Observers: JA & JU
-Radiometers cleaned @ 1623
- Surface Characterization:
(i) Gravimetric soil core sample collected due west of
the radiometer sawhorses at the perimeter of the fence at 1620.
(iii)
Trime
measurements next to soil moisture profiler and soil core, as well as along
western and southern transects.
(iv)
IR
surface temperature distribution with vegetation height taken in field of view
of flux tower IR instrument, 4 samples taken at 2 different times. IR surface
temperature distribution with vegetation height also taken along western and
southern transects
(v)
MSR
readings taken along western and southern transects as well as in field of view
of Site 2 PAM flux tower IR instrument.
(vi)
Porometry
data collected along the western and southern transects. Both of the dominant
species, sage and “thorny bush”, are sampled. Note, final values can not be
calculated until the actual LAI is measure in the lab.
(vii) Photographs taken of 4 cardinal directions and along western and southern transect and of the dominant plants.
(viii) Digital photos taken of 4 cardinal directions and along western and southern transect.
17)
Site
5: 5/22/02
Arrival: 1213
Departure: 1525
Conditions: overcast, though with decent light
penetration, strong SSW winds
Observers: JU & JA
- Radiometers cleaned and level checked at 1404
- Surface Characterization transect selected:
-Single NW transect selected along access road to flux tower, beginning approximately 20m NW of solar panel array, extends 45m marked with orange flags every 5m
- Surface Characterization:
(i) Gravimetric soil core sample collected 5m west of the
solar panels at1252.
(iii)
Trime
measurements next to soil moisture profiler and soil core, as well as along
western and southern transects.
(iv)
IR
surface temperature distribution with vegetation height taken in field of view
of flux tower IR instrument, 4 samples taken at 5 different times. IR surface
temperature distribution with vegetation height also taken along western and
southern transects
(v)
MSR
readings taken along western transect as well as in field of view of flux tower
IR instrument.
(vi)
LAI
measurements taken in field of view of flux tower IR instrument as well as
along western transects
(vii)
Porometry
data collected along western transect.
(viii)
NO
xylem potential measured since winter wheat vegetation not compatable with this
procedure
(ix)
Photographs
taken of 4 cardinal directions and along western and southern transect.
(x)
Digital
photos taken of 4 cardinal directions and along western and southern transect.
18)
Site
4: 5/22/02
Arrival: 1551
Departure: 1755
Conditions: overcast, though decent light
penetration, strong SSW winds
Observers: JA & JU
-Radiometers cleaned
-Surface Characterization transects selected:
(i)
western
transect begins 20m west of radiometer ‘saw horse’, extends for 20m and is
marked with orange flags every 5m
(ii)
southern
transect begins 20m south of radiometer ‘saw horse’, extending for 20m with
orange flags every 5m
-Surface Characterization:
(i) Gravimetric soil core sample collected 10m west of
radiometer ‘saw horse’ at 1606
(iii)
Trime
measurements next to soil moisture profiler and soil core, as well as along
western and southern transects.
(iv)
IR
surface temperature distribution with vegetation height taken in field of view
of flux tower IR instrument, 4 samples taken at 5 different times. IR surface
temperature distribution with vegetation height also taken along western and
southern transects
(v)
MSR
readings taken along western and southern transects as well as in field of view
of flux tower IR instrument.
(vi)
LAI
measurements taken in field of view of flux tower IR instrument as well as
along western and southern transects
(vii)
Porometry
data collected along transect
(viii)
NO
xylem potential measured since grass vegetation not compatible with this
procedure
(ix)
Photographs
taken of 4 cardinal directions and of dominant surface types and vegetation.
(x)
Digital
photos taken of 4 cardinal directions and along western and southern transect.