Hello!
My research work needs the data of MOD13A2. I know from MOD13_User_Guide_V6.pdf that the data is the VI average value of a period of 16 days, such as data MOD13A2.A2018001.H28v06.061.2021313031439.HDF, it shows that the cycle is 2018.1-2018.1.16, according to this reasoning, then the data MYD13A2.A2018009.H28v06.061.2021313072459.HDF the cycle is 2018.1.9-2018.1.24 ? Then the cycle of data MYD13A2.A2018361.H28v06.061.2022004082359.HDF is?
I look forward to receiving guidance,thank you!
MO(Y)D13A2
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Re: MO(Y)D13A2
Good Morning,
The MYD13A2.A2018361.H28v06.061.2022004082359 uses the last 4 days of 2018 and the first 12 days of 2019.
So in fact there is some overlap where acquisitions from several days are used in 2 consecutive composite period. Day 9, 10, 11, and 12 of 2019 (and every year) are used to average both the MYD13A2.A2018009.H28v06.061.2021313072459.HDF and the MYD13A2.A2018361.H28v06.061.2022004082359.HDF
Thanks,
Brett
The MYD13A2.A2018361.H28v06.061.2022004082359 uses the last 4 days of 2018 and the first 12 days of 2019.
So in fact there is some overlap where acquisitions from several days are used in 2 consecutive composite period. Day 9, 10, 11, and 12 of 2019 (and every year) are used to average both the MYD13A2.A2018009.H28v06.061.2021313072459.HDF and the MYD13A2.A2018361.H28v06.061.2022004082359.HDF
Thanks,
Brett