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We present the first simultaneous observations of chromospheric "anemone"jets in solar active regions with Hinode SOT Ca II H broadband filetergram andCa II K spetroheliogram on the Domeless Solar Telescope (DST) at HidaObservatory. During the coordinated observation, 9 chromospheric anemone jetswere simultaneously observed with the two instruments. These observationsrevealed three important features, i.e.: (1) the jets are generated in thelower chromosphere, (2) the length and lifetime of the jets are 0.4-5 Mm and40-320 sec, (3) the apparent velocity of the jets with Hinode SOT are 3-24km/s, while Ca II K3 component at the jets show blueshifts (in 5 events) in therange of 2- 6 km/s. The chromospheric anemone jets are associated with mixedpolarity regions which are either small emerging flux regions or movingmagnetic features. It is found that the Ca II K line often show red or blueasymmetry in K2/K1 component: the footpoint of the jets associated withemerging flux regions often show redshift (2-16 km/s), while the one withmoving magnetic features show blueshift (around 5 km/s). Detailed analysis ofmagnetic evolution of the jet foaming regions revealed that the reconnectionrate (or canceling rate) of the total magnetic flux at the footpoint of thejets are of order of 10^{16} Mx/s, and the resulting magnetic energy releaserate (1.1-10) x 10^{24} erg/s, with the total energy release (1-13) x 10^{26}erg for the duration of the magnetic cancellations, 130s. These are comparableto the estimated total energy, 10^{26} erg, in a single chromospheric anemonejet. An observation-based physical model of the jet is presented. The relationbetween chromospheric anemone jets and Ellerman bombs is discussed.

Observations of Chromospheric Anemone Jets with Hinode SOT and Hida Ca II Spectroheliogram