Search found 244 matches

by LP DAACx - lien
Mon Jan 06, 2025 1:30 pm America/New_York
Forum: Home
Question: MCD19A2 data Processing
Replies: 8

Re: MCD19A2 data Processing

Hello, This site has links to the tile Gring and Bounding coordinates: https://modis-land.gsfc.nasa.gov/MODLAND_grid.html Please note the Gring and Bounding coordinates are not exact. This script will give you the exact coordinates of any specific pixel within a given MODIS tile: https://lpdaacsvc.c...
by LP DAACx - lien
Tue Dec 10, 2024 1:50 pm America/New_York
Forum: Home
Question: how can i get or produce the MCD43A4 8days?
Replies: 5

Re: how can i get or produce the MCD43A4 8days?

Hello,
I am assuming your software is capable of creating a mask, but I do not know what you have or if I am familiar with your software.
Thanks.
by LP DAACx - lien
Thu Dec 05, 2024 11:05 am America/New_York
Forum: Home
Question: VNP13A1 v002 missing data in 2020
Replies: 5

Re: VNP13A1 v002 missing data in 2020

Hi Duanyang,
We wanted to make sure all was well. Were you able to download the previously missing tiles?
Thanks,
Brett
by LP DAACx - lien
Thu Dec 05, 2024 9:55 am America/New_York
Forum: Home
Question: ECOSTRESS LSTE V.002 high georeferencing error
Replies: 1

Re: ECOSTRESS LSTE V.002 high georeferencing error

Hi @akasom We are having our developers looking into this, not sure if there is a way to filter this out at this time. As soon as we hear back I will let you know.
Thanks,
Brett
by LP DAACx - lien
Thu Dec 05, 2024 8:33 am America/New_York
Forum: Home
Question: ECOSTRESS Highest resolution
Replies: 3

Re: ECOSTRESS Highest resolution

Good Morning, The User Guide states 90 x 90, and I can't comment on that because I don't know their rationale or formula for arriving at that value, also, I don't know your formula for arriving at 45, but that does make it seem reasonable for the developers to arrive at ~70 meters, along with the fa...
by LP DAACx - lien
Tue Dec 03, 2024 1:25 pm America/New_York
Forum: Home
Question: ECOSTRESS Highest resolution
Replies: 3

Re: ECOSTRESS Highest resolution

Hello, In any given Ecostress swath directly from the sensor on board the ISS the pixel size ranges from ~38 meters x 69 meters to ~90 meters x 90 meters along the edge of the swath. So pixel size varies greatly as it does with most all satellite data. The derived products need to be uniform so ~70 ...
by LP DAACx - lien
Mon Dec 02, 2024 11:07 am America/New_York
Forum: Home
Question: Delay in Availability of MODIS Products (MOD09A1 & MYD09A1)
Replies: 1

Re: Delay in Availability of MODIS Products (MOD09A1 & MYD09A1)

Hello, Sorry for the delay with the data processing. There are many factors that can affect data processing. It can be sensor and/or satellite related such as maneuvers and satellite issues. There will probably be more of this as Terra and Aqua age. Also, there can be issues at MODAPS as far as infr...
by LP DAACx - lien
Tue Nov 26, 2024 10:42 am America/New_York
Forum: Home
Question: Factor that averages BSA and WSA for real radiation conditions
Replies: 2

Re: Factor that averages BSA and WSA for real radiation conditions

Hi Abraham,
We will ask this question to the developer of the product to get their ideas and let you know when we hear back.
Thanks,
LPDAAC
by LP DAACx - lien
Tue Nov 26, 2024 10:40 am America/New_York
Forum: Home
Question: Harmonization or fusion of Landsat and Sentinel-2 data for geomorphological analysis of Italian rivers
Replies: 5

Re: Harmonization or fusion of Landsat and Sentinel-2 data for geomorphological analysis of Italian rivers

Hi Rosita, I ran this by some science folks and we really don't think there is a good answer on how this can be done satisfactorily. The advantages of our HLS products are they take Landsat 8 and 9 and Sentinel 2 and use the same processing algorithm and are able to get coverage every 2-3 days at 30...
by LP DAACx - lien
Tue Nov 26, 2024 9:22 am America/New_York
Forum: Home
Question: MOD09GA in HDF Preprocessing
Replies: 4

Re: MOD09GA in HDF Preprocessing

Hello, That is up to what you would like, it does not need preprocessing, it is atmospherically corrected. However, it is available in our AppEEARS tool which can perform many tasks such as subsetting by area and band, it can also reproject and reformat if you would like: https://appeears.earthdatac...