Ziyang solar terms menu daquan

As can be seen from the schematic diagram of the earth's revolution, when the earth is in position A, the sun shines directly on the Tropic of Cancer, which is the summer solstice in the northern hemisphere, and the date is around June 22nd. When the earth is in position B, the latitude of direct sunlight is the equator, which is the vernal equinox in the northern hemisphere, and the date is around March 2 1; When the earth is in position C, the latitude of direct sunlight is tropic of Capricorn, which is the winter solstice in the northern hemisphere, and the date is about 65438+February 22; When the earth is in position D, the latitude of direct sunlight is the equator, which is the autumn equinox in the northern hemisphere, and the date is around September 23rd.

(1) Looking at the picture, we can see that the solar term in the picture is the vernal equinox, when the earth moves around the position B in the picture.

(2) Ziyang is located in the hilly area of the central and western Sichuan Basin and belongs to the northern hemisphere. When the longest day and the shortest night are in the northern hemisphere, it is the summer solstice in the northern hemisphere, which is located in position A in the figure.

So the answer is: (1) b; (2) answer.