Add AO_index (#55)

repo_name: AO_index

people:  Willi Rath (<wrath@geomar.de>)

http_path_remote: https://git.geomar.de/data/AO_index

git_path_remote: git@git.geomar.de:data/AO_index

repo_description: |

    Arctic Oscillation time series from

    <http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.shtml>.

prefixes: data doc

data:

    - url: "http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/monthly.ao.index.b50.current.ascii"

      prefix: data

      file_name: monthly.ao.index.b50.current.ascii

      method: !!python/name:data_repo_renderer.CurlSingleFile

doc:

    - url: "http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.shtml"

      file_name: www.cpc.ncep.noaa.gov_products_precip_CWlink_daily_ao_index_ao.shtml

      prefix: doc

      method: !!python/name:data_repo_renderer.CurlSingleFile

    - url: "http://journals.ametsoc.org/doi/pdf/10.1175/1520-0442%282000%29013%3C3994%3ADFITSP%3E2.0.CO%3B2"

      file_name: Higgins_et_al_2000.pdf

      prefix: doc

      method: !!python/name:data_repo_renderer.CurlSingleFile

    - url: "http://onlinelibrary.wiley.com/doi/10.1029/2001GL013660/pdf"

      file_name: www.cpc.ncep.noaa.gov_products_precip_CWlink_daily_ao_index_ao.shtml

      prefix: Zhou_et_al_2001.pdf

      method: !!python/name:data_repo_renderer.CurlSingleFile