<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Andrew<div class=""><br class=""></div><div class="">pkg/gchem/gchem_forcing_sep.F</div><div class="">passes tracers to </div><div class="">pkg/bling/bling_main.F</div><div class="">where they become BGC variables: bling_main sees the 6th passed tracer as Iron</div><div class=""><br class=""></div><div class="">Thus in </div><div class=""><div class="">pkg/gchem/gchem_forcing_sep.F</div></div><div class="">I would </div><div class="">1) use a temporary local variable to combine your Fe ptracers. </div><div class="">2) Pass that temporary variable to bling_main instead of pTracer(1-OLx,1-OLy,1,bi,bj,6),</div><div class="">3) then decompose that variable and assign them back to your Fe ptracers.</div><div class=""><br class=""></div><div class="">With this method you only have to edit</div><div class="">pkg/gchem/gchem_forcing_sep.F</div><div class=""><br class=""></div><div class="">Haven’t tried this, so let me know if it doesn’t work, doesnt make sense, or doesn’t do what you wanted…</div><div class=""><br class=""></div><div class="">Matt</div><div class=""><br class=""></div><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On May 28, 2018, at 3:56 AM, Andrew Twelves <<a href="mailto:agt_94@hotmail.co.uk" class="">agt_94@hotmail.co.uk</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div id="divtagdefaultwrapper" dir="ltr" style="caret-color: rgb(0, 0, 0); font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-size: 12pt; font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;" class=""><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">Hi all,</div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">I have a question to do with the interface between BLING and the PTRACERS package: </div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">I want to use two separate iron tracers in my model with different source terms but with the same chemistry. I know that by default BLING reads in eight(or nine with plankton advected) tracers and assumes these correspond to DIC, alkalinity etc. in that order; however I thought it might be possible to simply combine the two iron tracers together before sending the sum to BLING, and then take this output from BLING calculations and redistribute it between the pools before the next time step. </div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">As I try and work this out, is there anyone who has tried something similar or who could tell me where exactly the physical tracers from PTRACERS are assigned to the biogeochemical ones in BLING? </div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">Many thanks,</div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class="">Andrew Twelves</div><div style="margin-top: 0px; margin-bottom: 0px; font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px;" class=""><span style="font-size: 10pt;" class="">University of Edinburgh</span></div><br class=""><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">_______________________________________________</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">MITgcm-support mailing list</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="mailto:MITgcm-support@mitgcm.org" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">MITgcm-support@mitgcm.org</a><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support</a></div></blockquote></div><br class=""></div></body></html>