Dear Thomas,
Thank you so much for your reply! Your suggestion is very helpful!
I will convert the CO2 and compare it with the other CO2 products.
Wishing you a good weekend.
Best,
Duan
Search found 12 matches
- Sat Jun 28, 2025 10:39 am America/New_York
- Forum: Home
- Question: Question About AIRS CO₂ Product
- Replies: 4
- Thu Jun 26, 2025 5:24 pm America/New_York
- Forum: Home
- Question: Question About AIRS CO₂ Product
- Replies: 4
Re: Question About AIRS CO₂ Product
Dear Thomas, Many thanks for your prompt reply and valuable comments—I really appreciate your help! I have a few follow-up questions regarding the AIRS CO₂ product: For the variable "CO2 upper troposphere VMR," the description states: "Carbon Monoxide volume mixing ratio to dry air be...
- Wed Jun 25, 2025 5:27 pm America/New_York
- Forum: Home
- Question: Question About AIRS CO₂ Product
- Replies: 4
Question About AIRS CO₂ Product
Dear all, I hope this message finds you well. Recently, I’ve been analyzing the relationship between atmospheric carbon dioxide and vegetation greenness. To do this, I plan to use the global time-series AIRS CO₂ product (SNDRAQIL3CMCCP), which I found on Earthdata: https://disc.gsfc.nasa.gov/dataset...
- Sun Apr 27, 2025 9:33 pm America/New_York
- Forum: Home
- Question: GPM monthly global precipitation data V07
- Replies: 1
GPM monthly global precipitation data V07
Dear administrator, I have one question about the monthly GPM 07 precipitation data. I found this data in GEE (NASA/GPM_L3/IMERG_MONTHLY_V07). I am confused about the unit of the precipitation measurement. The unit is ‘mm/hr’. Does that mean the precipitation measurements are not cumulated for a mon...
- Thu Aug 22, 2024 8:22 pm America/New_York
- Forum: Home
- Question: MYD17A2HGF has no data in 2022
- Replies: 2
MYD17A2HGF has no data in 2022
Dear Support,
I would like to download the MYD17A2HGF from the ‘NASA Earthdata Search’. However, I found this product has no data over the whole year in 2022. Could you please tell me what is going on and where I can get the missing data?
Thank you!
Best,
Duanyang
I would like to download the MYD17A2HGF from the ‘NASA Earthdata Search’. However, I found this product has no data over the whole year in 2022. Could you please tell me what is going on and where I can get the missing data?
Thank you!
Best,
Duanyang
- Thu Aug 22, 2024 6:39 pm America/New_York
- Forum: Home
- Question: VNP13A1 v002 missing data in 2020
- Replies: 5
Re: VNP13A1 v002 missing data in 2020
Dear Danielle, Many thanks for your kind help. I just checked the missing data in VNP13A1 v002 and they are available now! I really appreciate your help! However, I also found that there were some missing tiles in VNP15A2H v002 product. For example, DOY=305, 313, 321, 329 and 337 in 2020, DOY=209 in...
- Mon Aug 19, 2024 10:49 am America/New_York
- Forum: Home
- Question: VNP13A1 v002 missing data in 2020
- Replies: 5
VNP13A1 v002 missing data in 2020
Dear Support, I would like to download the VIIRS Version2 data (VNP13A1 v002) in 2020 from the ‘NASA Earthdata Search’. However, I found that this product has no data on DOY = 297, 305, and 361 globally. Could you please tell me what is going on and where I can get the missing data? Thank you! Best,...
- Wed Aug 14, 2024 11:49 am America/New_York
- Forum: Home
- Question: VIIRS Version 2 (VNP13A1 v002) data
- Replies: 3
Re: VIIRS Version 2 (VNP13A1 v002) data
Dear Brett,
I am looking for the 2020 VNP13A1 v002.
Thanks
Duanyang
I am looking for the 2020 VNP13A1 v002.
Thanks
Duanyang
- Mon Aug 12, 2024 12:14 pm America/New_York
- Forum: Home
- Question: VIIRS Version 2 (VNP13A1 v002) data
- Replies: 3
VIIRS Version 2 (VNP13A1 v002) data
Dear Support,
I would like to download the VIIRS Version2 (VNP13A1 v002) data from the ‘NASA Earthdata Search’. However, I found that this product had no data on DOY = 297, 305, and 361 globally. Could you please tell me what is going on and where I can get the missing data?
Thank you!
Best,
Duanyang
I would like to download the VIIRS Version2 (VNP13A1 v002) data from the ‘NASA Earthdata Search’. However, I found that this product had no data on DOY = 297, 305, and 361 globally. Could you please tell me what is going on and where I can get the missing data?
Thank you!
Best,
Duanyang
- Mon Jul 29, 2024 1:36 pm America/New_York
- Forum: Home
- Question: uncertainty for M*D13Q1
- Replies: 1
uncertainty for M*D13Q1
Dear Support,
Could you share some information about the uncertainty of the MODIS EVI/NDVI (M*D13Q1) product? I would like to use the MODIS product to do some reanalysis calculations on a global scale. However, I cannot find any uncertainty information about the M*D13Q1 data.
Thank you!
Duan
Could you share some information about the uncertainty of the MODIS EVI/NDVI (M*D13Q1) product? I would like to use the MODIS product to do some reanalysis calculations on a global scale. However, I cannot find any uncertainty information about the M*D13Q1 data.
Thank you!
Duan