Bobby Shafto | Channel Buoy Alignment: Observation #1 (see description) @bobshafto | Uploaded July 2021 | Updated October 2024, 6 seconds ago.
This is the first in a planned series of videos, documenting how the vertical alignment of the 5 San Diego Bay lighted channel buoys (even numbered 4-12) appear under varying conditions. Original concept and exploration can be seen here: youtube.com/watch?v=TLnHrjtOFws
Channel Buoy Observation #1
Date: June 30th, 2022
Time: Approximately 1500-1545 PDT
Camera Location: 32.708512°, -117.232195°
Notes about new camera location:
- this is about 225 ft east of previous location
- moved to get a better perspective on outer harbor buoys 4, 6, 8, 10 and 12 and moving inner harbor buoy 14 out of the frame
- location provides better wind protection and shade
- potentially better opportunity to capture inbound vessels within field of view of buoys
- better angle on Ballast Point with southern end of South Coronado Island in the background, for gauging visibility and using the Ballast Point light platform for vertical reference of apparent horizon.
- have not yet surveyed height ground above sea level (MSL) of this location. For this shot, camera was 4 ft above ground, on tripod set on concrete park bench.
Wave Heights: 2-3 ft per Imperial Beach buoy (NOAA station 46235)
ndbc.noaa.gov/station_page.php?station=46235
Tide: +4.35 at start; +4.55 at end
(Tide datum is MSL minus 2.8 ft)
Shelter Island weather:
Overcast; 7-8 knot SSW wind
Air temperature at camera: 68-70°F
Sea surface temperature: 67.5°F (outside bay)
Relative Humidity: 78%
Barometric Pressure: 1027 mbar (30.33 inHg)
The boat seen in the sequence is a 16m private yacht called the "Context," homeported in San Diego. Speaking with friends of the boat owners who happened to be on the quay to welcome it home, the boat has been away from San Diego for 2 years, returning from the Atlantic and Gulf of Mexico, transiting the Panama Canal, and this video just serenditously captured its approach to San Diego Bay. It can be first seen at the start of the video about 6.2 (statute) miles away, beyond buoy #4. It sailed inbound at about 7.5 knots until arriving at the customs inspection dock on Shelter Island near where I was filming.
The Ballast Point light on the dolphin platform seen in the last segment of the video is listed on Chart 18733 at 16-ft MSL. The southern summit of Mexico's South Coronado Island, 21 miles in the background, is approximately 680 ft MSL.
I'm hoping this will serve as a template for additional observations of these channel buoys and the horizon with Ballast Point as a vertical reference. I will provide the results of my survey of camera height for this particular shooting location when I can.
The audio track is "Satya Yuga" by Jesse Gallagher, provided by YouTube.
This is the first in a planned series of videos, documenting how the vertical alignment of the 5 San Diego Bay lighted channel buoys (even numbered 4-12) appear under varying conditions. Original concept and exploration can be seen here: youtube.com/watch?v=TLnHrjtOFws
Channel Buoy Observation #1
Date: June 30th, 2022
Time: Approximately 1500-1545 PDT
Camera Location: 32.708512°, -117.232195°
Notes about new camera location:
- this is about 225 ft east of previous location
- moved to get a better perspective on outer harbor buoys 4, 6, 8, 10 and 12 and moving inner harbor buoy 14 out of the frame
- location provides better wind protection and shade
- potentially better opportunity to capture inbound vessels within field of view of buoys
- better angle on Ballast Point with southern end of South Coronado Island in the background, for gauging visibility and using the Ballast Point light platform for vertical reference of apparent horizon.
- have not yet surveyed height ground above sea level (MSL) of this location. For this shot, camera was 4 ft above ground, on tripod set on concrete park bench.
Wave Heights: 2-3 ft per Imperial Beach buoy (NOAA station 46235)
ndbc.noaa.gov/station_page.php?station=46235
Tide: +4.35 at start; +4.55 at end
(Tide datum is MSL minus 2.8 ft)
Shelter Island weather:
Overcast; 7-8 knot SSW wind
Air temperature at camera: 68-70°F
Sea surface temperature: 67.5°F (outside bay)
Relative Humidity: 78%
Barometric Pressure: 1027 mbar (30.33 inHg)
The boat seen in the sequence is a 16m private yacht called the "Context," homeported in San Diego. Speaking with friends of the boat owners who happened to be on the quay to welcome it home, the boat has been away from San Diego for 2 years, returning from the Atlantic and Gulf of Mexico, transiting the Panama Canal, and this video just serenditously captured its approach to San Diego Bay. It can be first seen at the start of the video about 6.2 (statute) miles away, beyond buoy #4. It sailed inbound at about 7.5 knots until arriving at the customs inspection dock on Shelter Island near where I was filming.
The Ballast Point light on the dolphin platform seen in the last segment of the video is listed on Chart 18733 at 16-ft MSL. The southern summit of Mexico's South Coronado Island, 21 miles in the background, is approximately 680 ft MSL.
I'm hoping this will serve as a template for additional observations of these channel buoys and the horizon with Ballast Point as a vertical reference. I will provide the results of my survey of camera height for this particular shooting location when I can.
The audio track is "Satya Yuga" by Jesse Gallagher, provided by YouTube.
