allow selection of (alternate) data from maps

[teixeirak]

We want to be able to load additional data maps, which will provide additional data source options to the user. In the short term, we'd like to get the maps listed below into the calculator. In the longer term, if possible, I'd like to have instructions on how to do this so that someone without web programming skills can load them. If that could already be accomplished, perhaps the best would be to teach @ValentineHerr how to do this, and she can help load the maps we have ready.

The basic idea is that, when the user goes to edit an ecosystem, they have the option of selecting an alternate data layer. For example, as was already implemented in the previous version, a user could go to edit the aboveground biomass attribute (under "initial storage of organic matter") and choose the Saatchi map from the drop-down menu. We would like to retain that setup with the Saatchi map, and add a similar setup with additional maps.

The following maps are ready to be loaded (in Box: gcs>maps to be added to calculator; listed by folder name):

to appear as options for aboveground biomass when selected vegtype = trees:
-IPCC 2006 biomass defaults for forests (@ValentineHerr , I don't see this map in box. Could you please add?)
-"NACP_AGB and C baseline..."
-"NACP-LiDAR AGB...."
-"US forest biomass"
-"Lidar AGB boreal Eurasia"

to appear as option for soil organic carbon (any ecosystem, following same rules as HWSD):
-"Soil organic carbon density"

All units must be converted to Mg/ha. I will provide units conversion.

[ValentineHerr]

The IPCC map is added in the box now. https://app.box.com/files/0/f/11067008935/IPCC

[dlebauer]

@potterzot What are the steps?

First, I assume we need to make the file and variable information available to the generic R function. In #58 (comment) it looks like there is an R list called data_list that specifies the data sources. For each data source, there are three elements, the directory name, the file name, and the variable name, for example:

    "saatchi_agb_num" = list(
      ncdir = "",
      ncfile = "saatchi.nc",
      variable = "agb_1km"

• where is this list stored?
• once it is edited, what else do we need to do to add a new data set?

[econpotter]

I think the below is about right:

Step 1
The list is defined in biome.R. At the end of the data_list list there
are several of the new map files. They are all stored in "GCS/Maps"
subdirectory, so easiest would be to copy something like the synmap entry
and change the map name and the variable name (the variable is the name of
the variable in the netcdf file).

Step 2
That is all you need to do to have the new map "added". The easiest option
from there would probably be to write the biomass options as a new key in
the biome json, probably best inserted on line 393 of biome.R, something
like:

biome_default$biomass_ipcc <- res$

Step 3
Then in the rails app you'd have to add the ui logic to be able to select
different options. I have no real sense of how that should work.

Nicholas Potter
http://potterzot.com
9C73 3AAA 6D99 86F1 F8F4 601D 298F 8713 1BE6 5941

On Fri, Aug 26, 2016 at 10:29 AM, David LeBauer notifications@github.com
wrote:

@potterzot https://github.com/potterzot What are the steps?

First, I assume we need to make the file and variable information
available to the generic R function. In #58 (comment)
#58 (comment)
it looks like there is an R list called data_list that specifies the data
sources. For each data source, there are three elements, the directory
name, the file name, and the variable name, for example:

"saatchi_agb_num" = list(
  ncdir = "",
  ncfile = "saatchi.nc",
  variable = "agb_1km"

• where is this list stored?
• once it is edited, what else do we need to do to add a new data set?

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[teixeirak]

I have added a file to Box giving the unit conversions for the maps listed above. https://uofi.box.com/s/y8fsl0obdtzb56wyksgvjin7sc282ice

[dlebauer]

@ValentineHerr what are the next steps? Is it just to download the files and add them to the server running the calculator?

@potterzot can you help with this?

[teixeirak]

@ValentineHerrhttps://github.com/ValentineHerr has loaded the files to the server running the calculator. She is out until next Monday, so I’ll try to help if you have any questions.

On Oct 17, 2016, at 3:01 PM, David LeBauer <notifications@github.commailto:notifications@github.com> wrote:

@ValentineHerrhttps://github.com/ValentineHerr what are the next steps? Is it just to download the files and add them to the server running the calculator?

@potterzothttps://github.com/potterzot can you help with this?

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[econpotter]

A few things on this:

• I can't find the SOC.nc file listed on line 293 of ghgvcR/biome.R
• I don't think I have edit permissions on box, but I wonder if we can rename the *.nc files to have a standard naming convention? The US Forest biomass file has spaces in it that cause problems, and the IPCC file has two underscores in a row.

[dlebauer]

@potterzot

• SOC.nc and other files are here https://uofi.box.com/s/uyfcy756jvhgs7qf6l84cufor9cvzi5a
• I updated your permissions to edit on Box

sorry for the many mails - I edited then combined all of the previous comments