II\. Expedition Dates

Section II of the Modifications of Activities Planned for 1999-00 lists
the actual dates of significant events occurring\
during this time period.

# Significant Dates of Expeditions

+-----------+----------------------------------------------------------+
| [Date]{.u | [Activity]{.underline}                                   |
| nderline} |                                                          |
+===========+==========================================================+
| 21 Mar 99 | LMG99-3 Multi-disciplinary study of Antarctic fishes and |
|           | phyto-\                                                  |
|           | plankton. (Sidell, Detrich, Visibeck, D. Anderson)       |
+-----------+----------------------------------------------------------+
| 28 Mar 99 | NBP99-3 Studies of sediment dispersal patterns (Domack)  |
+-----------+----------------------------------------------------------+
| 15 Apr 99 | NBP99-4 Study of hydrothermal activity in the Bransfield |
|           | Strait\                                                  |
|           | (Klinkhammer)                                            |
+-----------+----------------------------------------------------------+
| 27 Apr 99 | LMG99-4&5 Continuation of LMG99-3 (Sidell, Detrich)      |
+-----------+----------------------------------------------------------+
| 14 May 99 | NBP99-5 Seismometer deployments in the South Shetland    |
|           | Island\                                                  |
|           | Archipelago (Dorman, Wiens)                              |
+-----------+----------------------------------------------------------+
| 11 Jun 99 | NBP99-6 Long-term study of Antarctic marine ecosystem    |
|           | (LTER)                                                   |
+-----------+----------------------------------------------------------+
| 09 Jul 99 | LMG99-6 Palmer Station support                           |
+-----------+----------------------------------------------------------+
| 19 Jul 99 | NBP99-7 Maintenance period in Talcahuano, Chile          |
+-----------+----------------------------------------------------------+
| 01 Aug 99 | LMG99-7 Transit to Talcahuano, Chile for maintenance     |
+-----------+----------------------------------------------------------+
| 17 Aug 99 | NBP99-8 Magnetic anomaly mapping (Cande)                 |
+-----------+----------------------------------------------------------+
| 20 Aug 99 | First flight to McMurdo for Winfly operations            |
+-----------+----------------------------------------------------------+
| 08 Sep 99 | NBP Vessel lay-up in Christchurch, New Zealand           |
+-----------+----------------------------------------------------------+
| 14 Sep 99 | LMG99-8 Palmer Station support, ADCP shakedown           |
|           | (Chereskin)                                              |
+-----------+----------------------------------------------------------+
| 18 Sep 99 | Palmer Station annual relief, summer operations commence |
+-----------+----------------------------------------------------------+
| 28 Sep 99 | LMG99-8A UNOLS vessel science inspection                 |
+-----------+----------------------------------------------------------+
| 30 Sep 99 | First C-141 mission to McMurdo during Ice Runway period  |
|           | (1 of\                                                   |
|           | 21); McMurdo Station commences summer operations         |
+-----------+----------------------------------------------------------+
| 01 Oct 99 | First C-5 mission to McMurdo of the season (1 of 2)      |
+-----------+----------------------------------------------------------+
| 04 Oct 99 | Marble Point opens                                       |
+-----------+----------------------------------------------------------+
| 09 Oct 99 | LMG99-8B Palmer Station turnover and Copacabana opening  |
+-----------+----------------------------------------------------------+
| 13 Oct 99 | Copacabana Field Camp opens                              |
+-----------+----------------------------------------------------------+
| 15 Oct 99 | First C-17 mission to McMurdo -- Test Flight, Cargo Only |
|           | (1 of 2)                                                 |
+-----------+----------------------------------------------------------+
| 16 Oct 99 | South Pole Medevac mission                               |
+-----------+----------------------------------------------------------+
| 25 Oct 99 | South Pole begins summer operations                      |
+-----------+----------------------------------------------------------+
| 25 Oct 99 | LMG99-9 Ongoing study of water column and benthic\       |
|           | community around Deception Island (K. Smith)             |
+-----------+----------------------------------------------------------+
| 28 Oct 99 | Cape Shirreff Field Station Opens                        |
+-----------+----------------------------------------------------------+
| 02 Nov 99 | Siple Dome opens                                         |
+-----------+----------------------------------------------------------+
| 13 Nov 99 | Byrd Surface Camp opens                                  |
+-----------+----------------------------------------------------------+
| 20 Nov 99 | LMG99-10 Study of bloom material along th West           |
|           | Antarctic\                                               |
|           | shelf, Microbiology and carbon fluz study near Victor    |
|           | Hugo\                                                    |
|           | Island (Karl, C. Smith, DeMaster)                        |
+-----------+----------------------------------------------------------+
| 23 Nov 99 | Midpoint Camp opens                                      |
+-----------+----------------------------------------------------------+
| 11 Dec 99 | Transfer flight operations from sea ice runway to        |
|           | Williams field                                           |
|           |                                                          |
|           | skiway.                                                  |
+-----------+----------------------------------------------------------+
| 17 Dec 99 | LMG00-1 LTER studies of sea-ice dynamics effect on       |
|           | biology\                                                 |
|           | (Fraser, Vernet, Martinson, Quetin, Smith, Karl)         |
+-----------+----------------------------------------------------------+
| 20 Dec 99 | NBP99-9 Study of pack ice seals in southern ocean & Ross |
|           | Sea\                                                     |
|           | (Bengtson, Torres, Ackley, Quetin, Castellini, Stewart,  |
|           | Yochem,\                                                 |
|           | and Siniff)                                              |
+-----------+----------------------------------------------------------+
| 27 Dec 99 | Midpoint Camp closes                                     |
+-----------+----------------------------------------------------------+
| 28 Dec 99 | *USCGC Polar Star* commendes break-in of ice channel to  |
|           |                                                          |
|           | McMurdo Station                                          |
+-----------+----------------------------------------------------------+
| 02 Jan 00 | 109^th^ AW brings fifth LC-130 aircraft to McMurdo       |
+-----------+----------------------------------------------------------+
| 17 Jan 00 | *M/V Richard G. Matthisen* (tanker) moored at McMurdo    |
|           | ice pier                                                 |
|           |                                                          |
|           | and commences station refueling operations               |
+-----------+----------------------------------------------------------+
| 22 Jan 00 | Refueling operations completed; *Matthisen* departs      |
|           | McMurdo                                                  |
+-----------+----------------------------------------------------------+
| 23-24 Jan | *USCGC Polar Star* refuels Marble Point                  |
| 00        |                                                          |
+-----------+----------------------------------------------------------+
| 25 Jan 00 | Byrd Surface Camp closes                                 |
+-----------+----------------------------------------------------------+
| 01 Feb 00 | First C-141 mission to McMurdo for redeployment (1 of    |
|           | 10)                                                      |
+-----------+----------------------------------------------------------+
| 05 Feb 00 | Ongoing time-series study of the water column and        |
|           | benthic\                                                 |
|           | community around Deception Island (K. Smith)             |
+-----------+----------------------------------------------------------+
| 06 Feb 00 | *Polar Star* commences southbound escort of *M/V Green   |
|           | Wave*                                                    |
+-----------+----------------------------------------------------------+
| 10 Feb 00 | *Green Wave* arrives McMurdo ice pier; cargo offload     |
|           | operations                                               |
|           |                                                          |
|           | commence                                                 |
+-----------+----------------------------------------------------------+
| 11 Feb 00 | Marble Point closes                                      |
+-----------+----------------------------------------------------------+
| 17 Feb 00 | *Green Wave* departs McMurdo ice pier; cargo operations  |
|           |                                                          |
|           | completed. *Polar Star* completes McMurdo operations and |
|           |                                                          |
|           | commences transit to Oates Coast in support of Antarctic |
|           | Ice                                                      |
|           |                                                          |
|           | Pack Seal Program (APIS)                                 |
+-----------+----------------------------------------------------------+
| 18 Feb 00 | South Pole Station commences winter-over operations      |
+-----------+----------------------------------------------------------+
| 25 Feb 00 | 109th AW departs McMurdo                                 |
+-----------+----------------------------------------------------------+
| 25 Feb 00 | Final C-141 turnaround mission at McMurdo                |
+-----------+----------------------------------------------------------+
| 25 Feb 00 | McMurdo Station commences winter-over operations         |
+-----------+----------------------------------------------------------+
| 08 Mar 00 | Copacabana Field Camp closes                             |
+-----------+----------------------------------------------------------+
| 09 Mar 00 | Cape Shirreff Field Station closes                       |
+-----------+----------------------------------------------------------+

1.  LMG = *R/V Laurence M. Gould\
    *NBP *= R/V Nathaniel B. Palmer*