Merge pull request #538 from PCMDI/issue537_durack1_tempESGFRedirectL…

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Add ESGF outage placeholder page

software/ESGF/index.md

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+---
+layout: default
+title: Earth System Grid Federation
+---
+
+# LLNL ESGF-Node
+
+We are currently experiencing an outage on the <a href="http://esgf-node.llnl.gov/" target="_blank">LLNL-ESGF</a> node. Below we offer a number of alternative sites that continue to provide data discovery and download access while the outage persists.
+
+## Alternative ESGF/CMIP access portals:
+
+<!-- ### <a href="https://aims2.llnl.gov/search" target="_blank">LLNL Metagrid web portal (West Coast USA)</a> -->
+
+### <a href="https://esgf-node.ornl.gov/search" target="_blank">ORNL Metagrid web portal (East Coast USA)</a>
+
+### <a href="https://esgf-data.dkrz.de/search/cmip6-dkrz/" target="_blank">DKRZ COG web portal (Germany)</a>
+
+### <a href="https://esgf-index1.ceda.ac.uk/search/cmip6-ceda/" target="_blank">CEDA COG web portal (UK)</a>
+
+### <a href="https://esgf.nci.org.au/search/cmip6-nci/" target="_blank">NCI COG web portal (Australia)</a>
+
+
+For any additional queries or concerns, please direct email to <a href=mailto:[email protected]">PCMDI-CMIP</a>.
+
+
+###### Document version: 05 January 2024