Snapshot Day 10/14/10 Data
(Salt Front RM 36)
RIVER MILE 31 – Nyack Beach Hook Mountain State Park
Kim Kastens, Lamont-Doherty Earth Observatory
8th grade teachers –Nyack Middle School – 8th grade – 50 students
4107.5”N 7354.5”W
Location: Nyack Beach, Upper Nyack, Rockland County NY
Area: Park/Boat launch, near Hook Mountain Sandy Beach by the large sitting stairs,
Surrounding Land Use: 70% forested, 5% urban/residential, 20% beach – used for
recreation & picnics
Sampling Site: Beach – sandy and rocky at edges, covered with vegetation beyond the
beach, stone wall, riprap shore, collected wood debris –
Piping coming into river south of sampling site
Plants in area:
Water depth:
River Bottom –sandy
ITEM
Time
Reading 1
Reading 2
Comments
Physical
Air Temperature
Wind Speed
Cloud Cover
Weather today
9:38am
64°F
16°C
9 km/hr
Partly
cloudy
No rain
9 knots
9 wind meter
Weather last 3
days
Water
Temperature
NW
9:30am
Depth
6 inches
9:55am
Depth
6 inches
10:55am
Depth
6 inches
15 C
15 C
15C
16C
15 C
20 C
20 C
20 C
59F
59F
59F
60.8F
59F
68F
68F
68F
5 cm
32.6 cm
5 cm
32.6
9:56 am
10:30 am
11:00 am
35.3 cm
34.8 cm
35.3 cm
34.4
30.8 cm
26.0 cm
38 cm
41
Avg 24 cm
Avg 31 cm
Avg 26 cm
Avg 36 cm
Turbidity
10:50am
10:30am
10:50am
10:50am
Chlorophyll
Chemical
0.1
0.3
0.3
DO
Drop count
9:35am
11:04am
11:07am
15C
19C
20C
11 PPM
11 PPM
11 PPM
105 % sat
115 % sat
118 % sat
9:59am
10:00am
10:59am
11:01am
Number
Caught
20
430
430
460
480
Species
400
410
500
480
Macroinvert.
ppm
ppm
ppm
ppm
Mud crabs
small
pH
Colormetric kit
Salinity
meter/
Fish Catch
Seine 12 ft. X 6ft.
Mesh 0.25 inch
1
sandworm
barnacles
11:17am
11:22am
11:27am
11:32am
11:37am
47cm
49cm
54cm
56cm
58cm
Currents
CM/60 secs
Cm/Sec
11:17am
11:19am
200cm/60s
331cm/60s
3.33 cm/sec
5.51 cm/sec
Tides
rising
rising
rising
rising
North/South
Knots
Ebb/Flood/Still
F
0.06Knots
F
0.10Knots