Composite disk-integrated Ca II K emission (EM) index of the Sun (1907-2016)
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'Monthly disk-integrated Ca II K emission (EM) index derived from Kodaikanal (8-bit digitization project), NSO/Sacramento Peak and SOLIS/ISS observations (1907- June 2016).' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Solar chromosphere","Solar Irradiance"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Monthly disk-integrated Ca II K emission (EM) index derived from Kodaikanal (8-bit digitization project), NSO/Sacramento Peak and SOLIS/ISS observations (1907- June 2016).' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Monthly disk-integrated Ca II K emission (EM) index derived from Kodaikanal (8-bit digitization project), NSO/Sacramento Peak and SOLIS/ISS observations (1907- June 2016).
Solar chromosphere; Solar Irradiance