maandag 23 januari 2012

2012-01-22 14:47 hbos

Weather     : Overcast / W wind 4 bft / Rain 3.9 mm (2 days before hard winds) / 1007.6 Hpa
Divers        : Ted / Gery / Axel
Goal          : Measure visibility with at 3 and 6 mtrs depth photoshoot with C. Kuyvenhoven
Max depth  : 11.1
Duration     : 53 minutes
Air temp     : 6.8 celsius
Water temp: 4.8 celsius minimum
Thermocline: none
Fish           : 2 eals (Anguila anguila), clouds of shrimp around the piles and active Amphipods in plants.
Plants        : Waterweed (Elodea canadensis) and new shoots of Curly leafpondweed Potamogeton crispus)!!!!
Visibility     :  6.5 mtrs at measurepoint 6 mtrs of depth. 7 mtrs at 3 mtrs
Remarks     :  < 5 divers in water, The 2 eals were together in one crevasse in a boulder of clay. An exiting photoshoot with Cor Kuyvenhoven en Emiel

dinsdag 17 januari 2012

2012-01-15 09:32 hbos

Weather     : Light clouds / ENE wind 2 bft / Rain 0.00 mm / 1027.2 Hpa
Divers        : Patrick / Axel
Goal          : Measure visibility with new meter at 6 mtrs depth
Max depth  : 7.8
Duration     : 33 minutes
Air temp     : 2.0 celsius
Water temp: 5.6 celsius minimum
Thermocline: none
Fish           : Clouds freshwater shrimps around piles under Paviljoen.
Plants        : Waterweed (Elodea canadensis) range 1-11 mtr No further decay. Fresh new leafs!!! 
Visibility     :  8 mtrs at measurepoint 6 mtrs of depth. no measurement at 3 mtrs
Remarks     :  We were first divers in water. Used yellow card with baseline contrast lines and ambient light.

NEW water analysis
Conductivity: 1.047 mS/cm
PH   :8.04 PH
NO2 :0 mg/L
NO3 :0 mg/L
KH   :7 DH
GH   :11 DH
CO2 :2.22 (calculated)

zondag 8 januari 2012

2012-01-08 10:14 hbos

Weather     : Sunny  / NW wind 4 bft / Rain 0.00 mm / 1022.0 Hpa
Divers        : Patrick, John, Joris, Mark, Axel
Goal          : Measure visibility with new meter
Max depth  : 7.9
Duration     : 40 minutes
Air temp     : 9.0 celsius
Water temp: 6.0 celsius minimum
Thermocline: none
Fish           : Clouds of freshwater shrimps around piles under paviljoen
Plants        : Waterweed (Elodea canadensis) range 1-11 mtr Leafs turning brown. Some weeds from upper region are now washed down to 11 mtrs depth. Due to many plowing divers.
Visibility     :  9 mtrs at measurepoint but around entry point < 0.5 - 5 mtrs
Remarks     : > 20 divers in water because of newyears dive event.

zaterdag 7 januari 2012

2012-01-07 08:12 hbos

Weather     : Heavy overcast / WNW wind 5 bft / Rain < 0.05 mm / 1015.4 Hpa
Divers        : Engel, Axel
Goal          : Orientation dive
Max depth  : 11.4 mtr
Duration     : 49 minutes
Air temp     : 7.8 celsius
Water temp: 5.6 celsius minimum
Thermocline: none
Fish           : 1 Eal, (Anguila anguila), 4 perch, 1 small Ruffe all taking cover.
Plants        : Waterweed (Elodea canadensis) range 1-11 mtr Leafs turning brown. Some weeds from upper region are now washed down to 11 mtrs depth. Probably due to hard winds lasting for over a week now.
Visibility     : Approx 5 mtrs
Remarks     : We were only divers in the water.

Dive Details : Entering at stones en turn left along the 8 mtr line. Usual round.

donderdag 5 januari 2012

04-01-2012 15:00 hbos

Weather      : Heavy overcast / W wind 6 bft / Rain 2.9 mm / 1007.9 Hpa
Divers         : Ted / Gery
Goal           :
Max depth   : 14.8 mtr
Duration      : ca 40 minutes
Air temp      : 7 celsius
Water temp : 6.0 celsius
Thermocline : none
Fish            : 1 Pike 1 Eal.
Plants         : no details
Visibility BC*: ??
Visibility YC*: ??
Remarks      :
BC= Baseline viz card.
YC= Yellow viz card. 

01-01-2012 09:00 hbos

Weather      : Clouds overcast / Wind SW 4 bft / Rain 11.1 mm / 1005.1 Hpa
Divers         : Ted / Gery
Goal           :
Max depth   : 14 mtr
Duration      : 47 minutes
Air temp      : 12 celsius
Water temp :  7 celsius
Thermocline :  none
Fish            : < 5 Perch
Plants         : no details
Visibility BC*: ??
Visibility YC*: ??
Remarks      : ??
BC= Baseline viz card.
YC= Yellow viz card.