# 14 Available Meteorological Drivers

### 14.0.1 Ameriflux

Scale: site

Resolution: 30 or 60 min

Availability: varies by site http:\/\/ameriflux.lbl.gov\/data\/data-availability\/

Notes: Old ORNL server, use is deprecated

### 14.0.2 AmerifluxLBL

Scale: site

Resolution: 30 or 60 min

Availability: varies by site http:\/\/ameriflux.lbl.gov\/data\/data-availability\/

Notes: new Lawrence Berkeley Lab server

### 14.0.3 Fluxnet2015

Scale: site

Resolution: 30 or 60 min

Availability: varies by site http://fluxnet.fluxdata.org/sites/site-list-and-pages

Notes: Fluxnet 2015 synthesis product. Does not cover all FLUXNET sites

### 14.0.4 NARR

Scale: North America

Resolution: 3 hr, approx. 32km $$Lambert conical projection$$

Availability: 1979-present

### 14.0.5 CRUNCEP

Scale: global

Resolution: 6hr, 0.5 degree

Availability: 1901-2010

### 14.0.6 CMIP5

Scale: varies by model

Resolution: 3 hr

Availability: 2006-2100

Currently only GFDL available. Different scenerios and ensemble members can be set via Advanced Edit.

### 14.0.7 NLDAS

Scale: Lower 48 + buffer,

Resolution: 1 hour, .125 degree

Availability: 1980-present

### 14.0.8 GLDAS

Scale: Global

Resolution: 3hr, 1 degree

Availability: 1948-2010

### 14.0.9 PalEON

Scale: -100 to -60 W Lon, 35 to 50 N Latitude $$US northern hardwoods + buffer$$

Resolution: 6hr, 0.5 degree

Availability: 850-2010

### 14.0.10 FluxnetLaThuile

Scale: site

Resolution: 30 or 60 min

Availability: varies by site http:\/\/www.fluxdata.org\/DataInfo\/Dataset%20Doc%20Lib\/SynthDataSummary.aspx

Notes: 2007 synthesis. Fluxnet2015 supercedes this for sites that have been updated

### 14.0.11 Geostreams

Scale: site

Resolution: varies

Availability: varies by site

Notes: This is a protocol, not a single archive. The PEcAn functions currently default to querying [https://terraref.ncsa.illinois.edu/clowder/api/geostreams], which requires login and contains data from only two sites (Urbana IL and Maricopa AZ). However the interface can be used with any server that supports the Geostreams API.

### 14.0.12 ERA5

Scale: Global

Resolution: 3 hrs and 31 km

Availability: 1950-present

Notes:

It’s important to know that the raw ERA5 tiles needs to be downloaded and registered in the database first. Inside the inst folder in the data.atmosphere package there are R files for downloading and registering files in the BETY. However, it assumes that you have registered and setup your API requirements. Check out how to setup your API [here] (https://confluence.ecmwf.int/display/CKB/How+to+download+ERA5#HowtodownloadERA5-3-DownloadERA5datathroughtheCDSAPI). In the inst folder you can find two files (ERA5_db_register.R and ERA5_USA_download.R). If you setup your ecmwf account as it’s explained in the link above, ERA5_USA_download.R will help you to download all the tiles with all the variables required for pecan extract.nc.ERA5 function to generate pecan standard met files. Besides installing the required packages for this file, it should work from top to bottom with no problem. After downloading the tiles, there is simple script in ERA5_db_register.R which helps you register your tiles in the bety. met.process later on uses that entery to find the required tiles for extracting met data for your sites. There are important points about this file. 1- Make sure you don’t change the site id in the script (which is the same the ParentSite in ERA5 registeration xml file). 2- Make sure the start and end date in that script matches the downloaded tiles. Set your ERA5.files.path to where you downloaded the tiles and then the rest of the script should be working fine.

The Downlad.GFDL function assimilates 3 hour frequency CMIP5 outputs generated by multiple GFDL models. GFDL developed several distinct modeling streams on the timescale of CMIP5 and AR5. These models include CM3, ESM2M and ESM2G with a spatial resolution of 2 degrees latitude by 2.5 degrees longitude. Each model has future outputs for the AR5 Representative Concentration Pathways ranging from 2006-2100.

### 14.0.14 CM3

GFDL’s CMIP5 experiments with CM3 included many of the integrations found in the long-term CMIP5 experimental design. The focus of this physical climate model is on the role of aerosols, aerosol-cloud interactions, and atmospheric chemistry in climate variability and climate change.

### 14.0.15 ESM2M & ESM2G

Two new models representing ocean physics with alternative numerical frameworks to explore the implications of some of the fundamental assumptions embedded in these models. Both ESM2M and ESM2G utilize a more advanced land model, LM3, than was available in ESM2.1 including a variety of enhancements (Milly et al., in prep). GFDL’s CMIP5 experiments with Earth System Models included many of the integrations found in the long-term CMIP5 experimental design. The ESMs, by design, close the carbon cycle and are used to study the impact of climate change on ecosystems, ecosystem changes on climate and human activities on ecosystems.