Marine ammonium and dissolved organic nitrogen data needed!

Marine Reduced Nitrogen Database (MaRNiD) – compilation of ammonium and dissolved organic nitrogen measurements in the gobal ocean.

SUBMIT YOUR DATA BY 31/5/2014 FOR AUTHORSHIP ON MaRNiD V1 DATA PAPER!

Ammonium is a key intermediary in assimilatory and dissimilatory nitrogen cycling and as such is an important indicator of biogeochemical conditions in the pelagic marine environment. It is also an atmospherically important trace gas, the marine emission of which is poorly constrained. Dissolved organic nitrogen is a precursor to ammonium although much of it is cycled much more slowly. As such it constitutes an important reservoir for nitrogen in the ocean. In spite of many groups measuring these parameters routinely in the ocean there is no database / climatology of either ammonium or DON (that we know of). We have already compiled a considerable dataset of ammonium (~10k measurements). We would like to develop this with the community into a comprehensive database of observations.

  • MaRNiD is accepting data now!

  • Option to opt out of publication and submit ‘embargoed’ data (will contribute to e.g. climatology / average values but specific data will only be accessible with author’s permission).

  • Data (non-embargoed) will be compiled into a publicly accessible database

  • Periodically updated versions of the public database will be published as Earth System Science Data papers  (http://www.earth-system-science-data.net). All originators of non-embargoed data will be named authors.

If you have marine ammonium or DON (bulk, or specific species) measurements from estuaries to the deep ocean, however old, however few or many, we would like to include them in MaRNiD. Please either:

  • Submit them to us now using the submission data template at http://bit.ly/1fbKjA2 or any other easily readable format following the guidelines here below and email them to martin.johnson@uea.ac.uk

  • Email martin.johnson@uea.ac.uk or fill in the (very brief) ammonium metadata form at  http://bit.ly/1ggJ5mz to let us know you have data you’d like to share in time for V1 of the database and we’ll contact you with a reminder ahead of the deadline.

PLEASE NOTE, IF YOU HAVE DATA ALREADY AVAILABLE THROUGH A DATA CENTRE WE CAN CONTACT THEM DIRECTLY TO GET THEM. IF YOU WOULD LIKE US TO DO THAT PLEASE FILL IN THE DETAILS IN THE METADATA FORM AND WE’LL FOLLOW IT UP. WHERE WE ALREADY HAVE DATA FROM DATA CENTRES DIRECTLY WE WILL CONTACT ALL DATA ORIGINATORS TO INVITE THEM TO JOIN THE INITIATIVE AND DATASET PUBLICATION.

Thanks for your help!

Martin Johnson [1,2], Tom Bell[3],  Fabien Paulot[4], Malcolm Woodward[3], Erik Buitenhuis[1], Tim Jickells[1]

The MaRNiD team

Submitting data to MaRNiD

We don’t mind what format you supply your data in as long as it’s readable by commonly available software. Ideally excel or comma spaced values would be easiest, or Ocean Data View files. In a perfect world  you would populate a copy of this blank template, which is based on the data we’ll be storing in the database http://bit.ly/1fbKjA2

The following data is ESSENTIAL for inclusion into MaRNiD:

  • Your name and email address

  • The name and email address of the data originator if different (and assuming you have permission to submit on their behalf)

  • Cruise / platform identifier

  • Date

  • Lat and long (decimal)

  • Concentration of ammonium / DON / DON species

  • Units of concentration (preferably in nM)

The following data is highly desirable, and will be necessary to achieve the highest quality data flag in the database

  • Method used

  • Detection limit of the method

  • Precision of the method

  • quality flag e.g. suspect / nondetect / good

The following would be really useful (but don’t delay submitting your data if you don’t have time to find them!)

  • Details of any public or private repository that the data has been submitted to

  • Links to publications using the data

  • Links to publications / other sources detailing the method used, especially with specific reference to analysis of samples from your data

  • Details of cruise reports, ancillary data availability etc

Spreadsheets of data should be row-wise (i.e. each data point on its own row). Where values in a column are unchanged from above rows they can be left blank (except concentration data and quality flag). See example data in submission template for demonstration

1 Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK

2 Centre for Environment, Fisheries and Aquaculture Science (Cefas), Pakefield Road, Lowestoft, UK

3 Plymouth Marine Laboratory, The Hoe, Plymouth, UK

4 School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA

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One response to “Marine ammonium and dissolved organic nitrogen data needed!

  1. Pingback: Aloha from Ocean Sciences 2014 #OSM2014 | Earth system, marine and open·

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