TABLE 2. --Observations on cruise TO-60-1 



to stations occupied about local noon and 

 others to stations occupied about local mid- 

 night. 



Noon station work generally consisted of 

 BT, hydrocast, plastic sampler casts for 

 chlorophyll a and productivity work, submarine 

 photometer lowering, and oblique zooplankton 

 haul. Midnight stations generally had BT, 

 hydrocast, oblique zooplankton haul, and 

 oblique micronekton haul. The operations at 

 other stations were generally confined to BT, 

 hydrocast (sometimes abbreviated), and 

 oblique haul (zooplankton). 



Observations between stations consisted of 

 BT lowerings, GEK fixes (certain areas only), 

 and high-speed micronekton net tows. Con- 

 tinuous observations were made of surface 

 temperature (Taylor or Foxboro thermograph) 

 and incident solar radiation (Eppley pyrheli- 

 ometer, signal recorded on Speedomax re- 

 corder). 



Data lists . --R. W. Holmes and M. Blackburn 

 compiled a data list for TO-58-1 (SCOT). 

 It is entitled "Physical, chemical, and biologi- 

 cal observations in the eastern tropical Pa- 

 cific Ocean: SCOT Expedition, April-June 

 1958" and has been published as U. S. Fish 

 and Wildlife Service Special Scientific Report-- 

 Fisheries No. 345, 1960. 



Ready for submission, with a view to similar 

 publication, is a similar data list for TO-58-2, 

 TO-59-1, and TO-59-2. It is by M. Blackburn, 

 R. C. Griffiths, R, W, Holmes, and W. H. 

 Thomas, and is entitled "Physical, chemical, 

 and biological observations in the eastern 

 tropical Pacific: three cruises to the Gulf 

 of Tehuantepec, 1958-1959." 



Moored Ocean Stations 



General remarks on the operations .-- Al- 

 though moored unattended instrumented ocean 



stations had been in internnittent use for 5 

 years prior to the STOR program (Bascom, 

 1956; Isaacs et al., 1957; Egeberg, 1959, for 

 instance), their supposed capacity for routine 

 long-term oceanographic work had not been 

 adequately tested. Since it was obvious that 

 the well-known limitations of research ships 

 would affect the STOR program more than 

 most oceanographic programs, because of the 

 size and remoteness of the area and the fact 

 that prediction as well as understanding was 

 desired, it was proposed from the beginning 

 that moored stations should be used in the 

 investigation. 



The investigators decided to start bytesting 

 the capacity of such stations to make and 

 record comparatively simple yet desirable 

 measurements (sea temperature at five levels 

 down to 120 m., air temperature, wind direc- 

 tion, and wind velocity) under the following 

 fairly rigorous conditions: hourly observa- 

 tions, various locations up to 2,000 miles 

 from the Institution's headquarters and in- 

 cluding rough weather situations, and sur- 

 veillance and servicing only at 3-monthly in- 

 tervals. The idea was to discover the 

 limitations of the stations for simple kinds 

 of observation with the minimunn of delay, so 

 that their use could be planned accordingly. 

 If all went well we intended to make the 

 stations capable of making further kinds of 

 measurements, including chemical and bio- 

 logical measurements. 



Four mooring sites >vere selected, one 

 inshore and one offshore in the region of 

 central Baja California and similarly in the 

 Gulf of Tehuantepec. Preparatory work began 

 in November 1957. The two sites in Baja 

 California were occupied by moored instru- 

 nnented stations in June 1958, and the sites 

 in the Gulf of Tehuantepec were occupied in 

 November 1958. By February 1959 it was 

 known that all stations had come adrift and 

 that the equipment therefore did not meet the 



