Category talk:MARPA Working Group - Revision history

Tfelis at 06:23, 28 April 2017

2017-04-28T06:23:43Z

Tfelis at 06:23, 28 April 2017

2017-04-28T06:23:13Z

Tfelis: /* Re: Re: Created a MARPA Template discussion -- Tfelis (talk) 02:21, 24 April 2017 (PDT) */

2017-04-24T09:23:19Z

‎Re: Re: Created a MARPA Template discussion -- Tfelis (talk) 02:21, 24 April 2017 (PDT)

Tfelis: /* Re: Created a MARPA Template discussion -- Deborah Khider (talk) 09:44, 2 March 2017 (PST) */

2017-04-24T09:21:39Z

‎Re: Created a MARPA Template discussion -- Deborah Khider (talk) 09:44, 2 March 2017 (PST)

Edassie: /* Created a MARPA Template discussion -- Edassie (talk) 09:43, 2 March 2017 (PST) */

2017-03-13T18:03:05Z

‎Created a MARPA Template discussion -- Edassie (talk) 09:43, 2 March 2017 (PST)

Edassie at 18:01, 13 March 2017

2017-03-13T18:01:26Z

Khider at 17:44, 2 March 2017

2017-03-02T17:44:38Z

Edassie: /* Created a MARPA Template discussion -- ~~~~ */ new section

2017-03-02T17:43:19Z

‎Created a MARPA Template discussion -- ~~~~: new section

Jeg: /* initiation -- ~~~~ */ new section

2016-09-28T21:53:19Z

‎initiation -- ~~~~: new section

New page

== initiation -- [[User:Jeg|JEG]] ([[User talk:Jeg|talk]]) 14:53, 28 September 2016 (PDT) ==

What are the most important/controversial aspects to discuss?

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 ====Re: Re: Created a MARPA Template discussion -- [[User:Tfelis|Tfelis]] ([[User talk:Tfelis|talk]]) 02:21, 24 April 2017 (PDT)====
-:: Suggestions for modification/additions to the MARPA template:
+:: Suggestions for modification/additions to the MARPA template by Thomas Felis:
 General comment:

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 Time series Data: Indicate at column header that “Depth” is referring to “Distance from top/youngest part” of core/colony. Better give “Depth” in “cm”, not “mm”. Monthly interpolated data should not have more digits after the decimal point than raw measured data. Better limit the “Years A.D.” column to 3 digits after the decimal point.
-Data Metadata: Analytical Error Assessment: Add a line for reporting for coral Sr/Ca and other element/Ca ratio measurements the average value obtained for a reference material such as the JCp-1, following Hathorne et al. (2013, doi: 10.1002/ggge.20230). Chronology Section: CHRONOLOGY METHOD: I would not give the name of a software here, I would rather give more specific information such as: “counting of annual cycles in (temperature sensitive) stable isotopic/geochemical proxies” (“supported by density banding”), or “density-band counting”, or “counting of presumed annual cycles in coral d13C”.
+Data Metadata: Analytical Error Assessment: Add a line for reporting for coral Sr/Ca and other element/Ca ratio measurements the average value obtained for a reference material such as the JCp-1, following Hathorne et al. (2013, doi: 10.1002/ggge.20230).
 Age model from AGER/Analyseries: I am not sure if it is helpful or more confusing to add detailed intermediate steps and associated datasets, between the originally measured geochemical record and the final monthly interpolated record (or what is actually shown in these two sub-worksheets?). This could lead to an inflation of datasets, if each dataset is getting its own data citation in the end, leading to confusion among future users of these data.

@@ Line 23: / Line 23: @@
 General comment:
 We need to state at a prominent place of this worksheet, if a core drilled from a coral colony is without gap over its total length, i.e., if the individual core segments fit seamlessly. This has not always been the case for coral cores drilled in the pre-2000s. Related to this, we need to assign an age model error to the final chronology of the coral time series, which can be different for different time intervals of the record.
 Detailed comments:
 About: List of chronology methods: Add „counting of annual cycles in (temperature sensitive) seasonally-resolved stable isotopic/geochemical proxies” as a chronology method; add “supported by density banding” as an option for this method. I do not think that mentioning the software is necessary here. Clearly state that counting of annual cycles in seasonally-resolved coral proxies is corroborated by annual density-band pairs, if this is the case. In other words, provide evidence that skeletal density-band pairs are actually annual, which is not always the case. Note that for annually-resolved coral proxy records, where the age model is just based on an presumed annual pattern of observed density band pairs, the uncertainty of the chronology can me much larger compared to seasonally resolved coral records, where the age model is based on a combination of counting of annual cycles in geochemical proxies corroborated by the density-banding pattern.

← Older revision		Revision as of 09:21, 24 April 2017
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	Please discuss any terms that need to be added or re-defined. Also identify the required, recommended and optional metadata.		Please discuss any terms that need to be added or re-defined. Also identify the required, recommended and optional metadata.
		+
		+	====Re: Re: Created a MARPA Template discussion -- [[User:Tfelis\|Tfelis]] ([[User talk:Tfelis\|talk]]) 02:21, 24 April 2017 (PDT)====
		+
		+	:: Suggestions for modification/additions to the MARPA template:
		+
		+	General comment:
		+	We need to state at a prominent place of this worksheet, if a core drilled from a coral colony is without gap over its total length, i.e., if the individual core segments fit seamlessly. This has not always been the case for coral cores drilled in the pre-2000s. Related to this, we need to assign an age model error to the final chronology of the coral time series, which can be different for different time intervals of the record.
		+
		+	Detailed comments:
		+	About: List of chronology methods: Add „counting of annual cycles in (temperature sensitive) seasonally-resolved stable isotopic/geochemical proxies” as a chronology method; add “supported by density banding” as an option for this method. I do not think that mentioning the software is necessary here. Clearly state that counting of annual cycles in seasonally-resolved coral proxies is corroborated by annual density-band pairs, if this is the case. In other words, provide evidence that skeletal density-band pairs are actually annual, which is not always the case. Note that for annually-resolved coral proxy records, where the age model is just based on an presumed annual pattern of observed density band pairs, the uncertainty of the chronology can me much larger compared to seasonally resolved coral records, where the age model is based on a combination of counting of annual cycles in geochemical proxies corroborated by the density-banding pattern.
		+
		+	Publishing Info: Change “PROXY ARCHIVE” “Coral Core” to “PROXY ARCHIVE” “Coral”. Add as “MANDATORY field” “Data citation” that includes the data citation doi (for PANGAEA) or the data citation url (for NOAA Paleo).
		+
		+	Time series Data: Indicate at column header that “Depth” is referring to “Distance from top/youngest part” of core/colony. Better give “Depth” in “cm”, not “mm”. Monthly interpolated data should not have more digits after the decimal point than raw measured data. Better limit the “Years A.D.” column to 3 digits after the decimal point.
		+
		+	Data Metadata: Analytical Error Assessment: Add a line for reporting for coral Sr/Ca and other element/Ca ratio measurements the average value obtained for a reference material such as the JCp-1, following Hathorne et al. (2013, doi: 10.1002/ggge.20230). Chronology Section: CHRONOLOGY METHOD: I would not give the name of a software here, I would rather give more specific information such as: “counting of annual cycles in (temperature sensitive) stable isotopic/geochemical proxies” (“supported by density banding”), or “density-band counting”, or “counting of presumed annual cycles in coral d13C”.
		+
		+	Age model from AGER/Analyseries: I am not sure if it is helpful or more confusing to add detailed intermediate steps and associated datasets, between the originally measured geochemical record and the final monthly interpolated record (or what is actually shown in these two sub-worksheets?). This could lead to an inflation of datasets, if each dataset is getting its own data citation in the end, leading to confusion among future users of these data.
		+
		+	Best wishes, Thomas

	===Re: Created a MARPA Template discussion -- [[User:Edassie\|Edassie]] ([[User talk:Edassie\|talk]]) 11:01, 13 March 2017 (PDT)===		===Re: Created a MARPA Template discussion -- [[User:Edassie\|Edassie]] ([[User talk:Edassie\|talk]]) 11:01, 13 March 2017 (PDT)===

← Older revision		Revision as of 18:03, 13 March 2017
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	===Re: Created a MARPA Template discussion -- [[User:Edassie\|Edassie]] ([[User talk:Edassie\|talk]]) 11:01, 13 March 2017 (PDT)===		===Re: Created a MARPA Template discussion -- [[User:Edassie\|Edassie]] ([[User talk:Edassie\|talk]]) 11:01, 13 March 2017 (PDT)===

−	: ~~Replace this text~~ with ~~your reply~~	+	: 1st comment on the MARPA Template from Janice Lough...
		+
		+	Found the template! Some comments/suggestions as follows:
		+
		+	1) Geochemical data – ability to include other geochemical tracers not listed in menu?
		+	2) Other types of record? e.g. coral luminescence?
		+	3) Present focus on geochemical tracers but what about other dated records – am thinking specifically about coral growth variables, i.e. skeletal density, linear extension and calcification.
		+	4) How do reconstructions of climate variables fit into the scheme? e.g. SST, SSS etc
		+	5) What about metadata describing material that has been collected (e.g. coral cores) but a) has not been analysed or b) there is still material is available for other researchers to work with. I am thinking specifically here about coral cores as, for example, AIMS has an extensive collection of cores from east and west coast Australian reefs – only a small fraction of these have been analysed geochemically and there is plenty of scope to share this material more widely but it is, at present, only visible in our internal database. Also, I am aware of other coral core collections where coral core material has been collected but nothing has ever appeared in publications – presumably the physical samples are still sitting somewhere – it is, I think, important to identify these as far as possible.
		+
		+	Anyway, just some initial thoughts and look forward to seeing this initiative develop further.
		+
		+	Best wishes
		+
		+	Janice

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 == Created a MARPA Template discussion -- [[User:Edassie|Edassie]] ([[User talk:Edassie|talk]]) 09:43, 2 March 2017 (PST) ==
-Is this template suiting you?
+ Hi MARPA people!
-If not what else do you need?
 ===Re: Created a MARPA Template discussion -- [[User:Khider|Deborah Khider]] ([[User talk:Khider|talk]]) 09:44, 2 March 2017 (PST)===
 Please discuss any terms that need to be added or re-defined. Also identify the required, recommended and optional metadata.

← Older revision		Revision as of 17:44, 2 March 2017
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	Is this template suiting you?		Is this template suiting you?
	If not what else do you need?		If not what else do you need?
		+
		+	===Re: Created a MARPA Template discussion -- [[User:Khider\|Deborah Khider]] ([[User talk:Khider\|talk]]) 09:44, 2 March 2017 (PST)===
		+
		+	Please discuss any terms that need to be added or re-defined. Also identify the required, recommended and optional metadata.

← Older revision		Revision as of 17:43, 2 March 2017
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	What are the most important/controversial aspects to discuss?		What are the most important/controversial aspects to discuss?
		+
		+	== Created a MARPA Template discussion -- [[User:Edassie\|Edassie]] ([[User talk:Edassie\|talk]]) 09:43, 2 March 2017 (PST) ==
		+
		+	Is this template suiting you?
		+	If not what else do you need?