Appendix F.
REPORT OF THE DIRECTOR
OF THE ROYAL OBSERVATORY, HONG KONG, FOR THE YEAR 1927.
I. GROUNDS AND BUILDINGS.
The grounds were kept in order by the Botanical and Forestry Department. The paths, which were badly damaged by the floods of May, July and August, were repaired by the Public Works Department in November. Attempts were made to prevent the roof of the main building from leaking, but without success.
Magnetic Station at Au Tau.-The buildings for the new Magnetic Station at Au Tau were completed in March. The co-ordinates of the pier used for absolute measures of magnetic declination and horizontal force are:
Latitude 22° 26′ 50″.6 N.
Longitude 114° 2′ 40″.5 E.
A description of the buildings and instruments will be given in the first Bulletin of magnetic observations.
The site chosen in 1924 was about 150 yards to the east of the Au Tau Police Station but objections to its use as a magnetic station were raised by the Chinese of a neighbouring village. Another site, in view of the Police Station, was therefore chosen in my absence; but the Chinese again objected and in deference to their wishes the present site, about 30 yards to the NNW, was adopted; the offending buildings being obscured from the village by a small hillock. Unfortunately it is also obscured from the Police Station; moreover there is no suitable azimuth mark visible from the observing hut; a pipe on a house about a mile to westward is available in clear weather, but for use in misty weather a mark has been painted on rising ground 50 yards to westward.
Underground Chamber for Seismograph and Clocks.-The diurnal inequality of temperature in the underground chamber continues to be negligible, its automatic registration has therefore been discontinued. The annual range in 1927 amounted to 11°.6 as against 9°.1 in 1926.
The humidity also shows no appreciable diurnal inequality, but is seriously affected by large changes in the open air. The annual range in 1927 was 42%, the same as in 1926. Automatic registration was discontinued at the end of the year.
Appendix F.
REPORT OF THE DIRECTOR
OF THE ROYAL OBSERVATORY, HONG KONG, FOR THE YEAR 1927.
I. GROUNDS AND BUILDINGS.
The grounds were kept in order by the Botanical and Forestry Department. The paths, which were badly damaged by the floods of May, July and August, were repaired by the Public Works Department in November. Attempts were made to prevent the roof of the main building from leaking, but without success.
Magnetic Station at Au Tau.-The buildings for the new Magnetic Station at Au Tau were completed in March. The co-ordinates of the pier used for absolute measures of magnetic declination and horizontal force are:
Latitude 22°. 26′ 50′′.6 N.
Longitude 114°. 2′ 40′′.5 E.
A description of the buildings and instruments will be given in the first Bulletin of magnetic observations.
The site chosen in 1924 was about 150 yards to the east of the Au Tau Police Station but objections to its use as a magnetic station were raised by the Chinese of a neighbouring village. Another site, in view of the Police Station, was there- fore chosen in my absence; but the Chinese again objected and in deference to their wishes the present site, about 30 yards to the NNW, was adopted; the offending buildings being obscured from the village by a small hillock. Unfortunately it is also obscured from the Police Station; moreover there is no suitable azimuth mark visible from the observing hut; a pipe on a house about a mile to westward is available in clear weather, but for use in misty weather a mark has been painted on rising ground 50 yards to westward.
Underground Chamber for Seismograph and Clocks.-The diurnal inequality of temperature in the underground chamber continues to be negligible, its automatic registration has there- fore been discontinued. The annual range in 1927 amounted to 11°.6 as against 9°.1 in 1926.
The humidity also shows no appreciable diurnal inequality, but is seriously affected by large changes in the open air. The annual range in 1927 was 42%, the same as in 1926. Automatic registration was discontinued at the end of the year.
No comments yet.
Private notes are available after approval.