eMOLT Protocol
Version 5.2

Last Modified  10 May 2003


Chapter One: Four Basic Steps

  1. Initializing the Probes & Deployment
  2. Documenting the Deployment
  3. Downloading the Data
  4. Emailing the Data
Chapter Two: Other Details


This manual is updated a few times per year and is available from the project homepage: "emolt.html".   Other information such as "Results from the field",  "Training Sessions Scheduled" ,  "What's New", and  "Getting Started Manual for Administrators" is also available from the homepage.  Participants are encouraged to provide feedback on the eMOLT web site and this manual in particular.

While there are "four" basic steps  in the instructions that follow,  it should be noted that participants have the option to defer most of this work to both their association representatives (Casoni, Farrey, Spinazzola, or Grindal) and/or their industry representatives (Feeney, Goldthwait&Vuilleumier, Palombo, and Cates).  The only step that the participants are absolutely required to do (other than deploying the probes)  is the "Documenting the Deployment" operation (step #2 below).   Participants that choose this less-involved option do not need a "reader" for initializing and downloading the probe.  The representatives would take care of steps 1, 3, and 4: setting up the probes, getting the data off the probe, and email the data.  In fact,  participants  that choose this less-involved option do not need  this manual. They can refer to the one page instructions at: lob/exampless.html

This manual is now written specifically for eMOLT participants that use the ONSET TidBit probes.  The details of using the VEMCO probes can be found in an earlier version of this manual.  The detailed instructions on using the YSI and the SEABIRD salinity sensors is also available eleswhere.

Chapter One: Four Basic Steps

1) Launching  and Deploying the  Probes

2) Documenting the Deployment
Note that all of these options below require participants to devulge sensitive information (latitude/longtitude for the particular trap w/probe attached).  It is understood that this information is not distributed publically other than to the emolt representatives of their own association so they may help them with documentation and "site code" definitions.  The information is stored in a single database located in Woods Hole and will be archived for  multiple years before it is analyzed.  It should be clear to the particpants, however, that without this documentation  the temperature data would be useless.  The participants now have the option to exclude catch information along with their documentation. While these catch fields are voluntary, it should be clear that no conclusions could be drawn from the study concerning the effects of temperature on lobster migration and abundance without them.  So, if participants wish to have their temperature data correlated with catch information in subsequent years, we encourage them to submit the haul counts along with your position data.
There are now four options describe below for "documenting the deployment":  1) using the Thistle Marine Data Logger ,  2) using a standard spreadsheet program, 3) using the web, and 4) handwritten logs
                    Example Spreadsheet for Participants Using Option 2
SN Deployment Site Latitude Longitude date-haul time-haul Depth #of pots/haul #lbs kept #lbs. eggers #lbs shorts trap type
566 01 TA01 4059.8 5733.2 4/10/2001 00:01am 100 50 100 20 30 50"wire
566 02 TA01 4059.8 5733.4 4/25/2001 12:30am 102 50 50 40 20
344 01 TA02 4100.1 5822.0 4/12/2001 10:23am 80 50 123 15 40

3) Downloading the Data

4) Emailing the Data with each Multi-Month Deployment

Chapter Two: Other Details

Where to deploy the probes

As to what geographic areas and depths to target... I do not want to specify exactly. The idea is to maximize the following parameters in the order they are listed:
  1. time deployed at any one location
  2. water depth of deployment
  3. distance between probes
  4. along-the-depth-contours strings



    For further discussion on this topic and details on each parameter click here.

    Notice the "likehood of recovery" is not listed in the criteria above. We want probes to be deployed in safe places (>75% recovery/year)  but it is not one of the main considerations. We expect probes to be lost.

    We hope those of you who have multiple probes can attach one to your surface buoy.  This is only for those probes deployed beyond the 30 fathom depth contour, as we are interested in the thermal stratification of the water column in those areas.

Trouble Shooting Looking at Your Data
Approximately one week after emailing your data, you should be able to see plots of your temperature records on the web by going to the either the "Data Access" or the "Results from the Field" section of the eMOLT web site.
While you can easily view the data in the BOXCAR software window after clicking "file information|more",  you can also  "file export" to either a spreadsheet or ascii file.  This step is optional.   The exported filename will have the same base (tXXYYZZ) as the raw  file but will default to a ".txt" extention.

For further information contact: James.Manning@noaa.gov

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