Introduction and download of nine npp\gpp datasets

Data brief

China wants to be in 2030 Achieve carbon peak in ,2060 Carbon neutralization was achieved in . How to measure ecosystem carbon sources and sinks , And detect the dynamic distribution of space-time ？ Scientists have chosen a key part of the terrestrial carbon cycle NPP, Regard it as an indicator of the energy flow and ecosystem function of the ecosystem .

Total primary productivity GPP（Gross Primary Production) It means that the ecosystem producers obtain chemical energy within a certain period of time , The rate at which it is stored in biomass .

Part of the energy fixed by the plant is used for its own growth R, The production of the remaining part is the net primary productivity NPP（Net Primary Production
） .

At present, the Chinese Internet is about NPP The summary blog of the data set has almost no , Here I briefly summarize nine common NPP And GPP Data sets .

Global data set

It mainly introduces several kinds of NPP/GPP Data sets .

MODIS GPP\NPP （500m）

MODIS GPP\NPP Data is the most widely used data set at present , The data set has been verified by comparing the product with the ground reference point , And provide 14 Data categories available for users to download .

name	type	The resolution of the	The way of synthesis	source
MOD17A2H v006	GPP	500m	8 God	Terra
MOD17A2H v061	GPP	500m	8 God	Terra
MOD17A2HGF v006	GPP	500m	8 God	Terra
MOD17A2HGF v061	GPP	500m	8 God	Terra
MOD17A3H v006	NPP	500m	1 year	Terra
MOD17A3HGF v006	NPP	500m	1 year	Terra
MOD17A3HGF v061	NPP	500m	1 year	Terra
MYD17A2H v061	GPP	500m	8 God	Aqua
MYD17A2H v006	GPP	500m	8 God	Aqua
MYD17A2HGF v006	GPP	500m	8 God	Aqua
MYD17A2HGF v061	GPP	500m	8 God	Aqua
MYD17A3H v006	NPP	500m	1 year	Aqua
MYD17A3HGF v061	NPP	500m	1 year	Aqua
MYD17A3HGF v006	NPP	500m	1 year	Aqua

among ,Terra The satellite observation data is MOD data ,aqua The satellite observation data is MYD data ,Terra It is in the local morning 10:30 Transit ,auqa In the local afternoon 1:30 Transit .A2 yes GPP data , Every time 8 Days for data synthesis .A3 yes NPP data , Synthesize every year .

If you need to download this series of data , First of all to enter USGS Resource search bar for （https://lpdaac.usgs.gov/product_search/）, Search for Primary Productivity：

Select the data set to be downloaded , Click to enter , The page will display the relevant information and download methods of the dataset . Click on Access Data, Get download link ：

There are several ways to download , You can choose NASA Earthdata Search, Because you can jump directly to the data selection page ：

If you don't log in NASA, Log in first , Then click on the data to download .

Go to the website 、 Set filter time （2022 year 1 At the beginning of ）、 Location （ Chengdu and Ziyang ）、 Select an image to download ：

After downloading, use the software to open the video , Have a look ：

1982–2018 year GPP（0.05°）

This data set is published in ESSD On , The first author is from Sun Yat sen University **Zheng Yi **. The author passes EC-LUE The model generates 0.05° Spatial resolution and 8 Day time resolution 1982–2018 In the world GPP Data sets .

If you need to download the dataset , Open the official link of the paper （https://essd.copernicus.org/articles/12/2725/2020/）, choice Assets Data links in

When I open the link , Select the data of the corresponding year to download ：

After the data is downloaded , Unzip to see the year every 8 Days of datasets , The last few numbers represent the number of days , such as 2018121 representative 2018 In the first 121 God ：

Load into gis In software , View data effects ：

Related literature ：Zheng Y , Shen R , Wang Y , et al. Improved estimate of global gross primary production for reproducing its long-term variation, 1982–2017[J]. Earth System Science Data Discussions, 2019:1-31.

1988-2020 year GPP （0.25°）

This data set is the first global data set derived from microwave remote sensing GPP Data sets , Cover 1988-2020 year , The spatial resolution is 0.25°. The data were produced using a new combined frequency vegetation optical depth climatic profile with ERA5-Land Temperature data , In the new tandem drive GPP Estimate the method to make a global GPP data .

If you need to download the data , First, include the address of the thesis ：https://essd.copernicus.org/preprints/essd-2021-209/

Enter the data download interface , Click to download . The data is a nc Data collection , All years are included .

Related literature ：Benjamin W, Irene T,2, Leander M , et al. VODCA2GPP – A new global, long-term (1988–2020) GPP dataset from microwave remote sensing[J]. Earth System Science Data, 2021

2000-2016 year GPP （0.05°）

This data set contains information from the vegetation photosynthesis model (VPM) Of GPP, It has two spatial resolutions （0.05 and 0.5 degree ） And three time resolutions （8 God 、 monthly 、 Every year, ）

If you need to download the data , Go to the database website of the United States Department of agriculture , Or click this link （https://data.nal.usda.gov/dataset/global-moderate-resolution-dataset-gross-primary-production-vegetation-2000%E2%80%932016）

Download resource file , After extracting this file, there will be two .tab file ：

Use Notepad to open... With links .tab Format file , Copy the link to the relevant year , such as 2016 Year is ：https://hs.pangaea.de/Maps/GPPVPM/gpp_2016.zip, Readers can translate 2016 It is amended as follows 2000-2016 Any year can also be downloaded .

The data is very big , I won't demonstrate data download ：

Related literature ： Zhang Y , Xiao X , Wu X , et al. A global moderate resolution dataset of gross primary production of vegetation for 2000–2016[J]. Scientific Data, 2017, 4:170165.

1951-2000 year NPP （0.5°）

Dataset name ：World maps of climatological net primary production of biomass, NPP

This data set is based on the latest temperature and precipitation grid data set , Generated 1951 - 2000 During the year NPP.

Data download needs to enter FAO Resource search pages for , Click on the search World maps of climatological net primary production of biomass：

After entering the page , Select the corresponding time period to download . It should be noted that this dataset has only a time period , There is no specific year ：

Open the video after downloading the data :

* Related literature ：*J Grieser, R Gommes, S Cofield, & M Bernardi. World maps of climatological net primary production of biomass, NPP.

Regional datasets

This paper mainly introduces some practical and interesting regional data sets . For example, in the United States 30m The resolution of the NPP And the American day by day GPP.

The United States 2000-2019 Every day in GPP（250m）

The dataset is Chongya Jiang On 2021 Years published in ESSD On , This data set covers... In the United States 250m Day by day resolution GPP data .

If you need to download the dataset , Open the thesis website ：https://essd.copernicus.org/articles/13/281/2021/

Click on DOI, Go to download address ：https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1786, land NASA account number ：

Then pull the page to the bottom , Select the appropriate data download . This data totals 11.6TB, Select the data you are interested in ：

Related literature ：Jiang C , Guan K , Wu G , et al. A daily, 250 m and real-time gross primary productivity product (2000–present) covering the contiguous United States[J]. Earth System Science Data, 2021, 13(2):281-298.

The United States 1990 year -2019 Every year 16 God NPP/GPP（30 rice ）

This data covers the United States , The production method is ：

a) from Landsat get 1986 Year to 2016 Year of 30 m The resolution of the 16 Days of GPP And the year NPP;

b) from MODIS get 2001 - 2016 year 250 m Resolution 8 God GPP And the year NPP.

c) Based on coming from FLUXNET2015 The eddy covariance flux of the database is derived GPP data .

If you need to download the data , Go to the website ：http://files.ntsg.umt.edu/data/Landsat_Productivity/, The website is displayed in the form of folders , You can download it directly ：

* Related literature ：*Robinson, N.P., B.W. Allred, W.K. Smith, M.O. Jones, A. Moreno, T.A. Erickson, D.E. Naugle, and S.W. Running. 2018. Terrestrial primary production for the conterminous United States derived from Landsat 30 m and MODIS 250 m. Remote Sensing in Ecology and Conservation

China 2000-2010 year NPP （1km）

The Chinese Academy of Sciences NPP The data coverage time is 2000 year -2010 year , A resolution of 1km：

Download by entering ：https://www.resdc.cn/data.aspx?DATAID=204, Click download ：

China 1985-2015 year NPP（1KM）

Chenpengfei, a teacher of the Chinese Academy of Sciences, made a monthly net primary productivity 1 Kilometer grid dataset （1985-2015）,

The download method is to access the global change scientific research data website ：http://www.geodoi.ac.cn/ , Search for monthly net primary productivity ：

Click to enter , Then select the corresponding year to download data ：

Click to download

Download data of interest , Select the corresponding month for display ：

Related literature ：

Chen Pengfei . North latitude 18° Monthly net primary productivity of terrestrial ecosystems in northern China 1 Kilometer grid dataset (1985-2015)[J]. Journal of global change data ( Chinese and English ), 2019(1):16.

Other reference ：

MajorDifferences. Difference between Gross Primary Productivity and Net Primary Productivity

Wangzhaosheng . 1949-2008 The terrestrial ecosystem of East Asia in NPP and GPP The evolution of space-time pattern [D]. Hunan University of science and technology , 2012.

Geoscience remote sensing data collection （www.gisrsdata.com） The website has been launched for the first time 70 days , distance 100 The appointed time is coming .

But the data download tutorial is not comprehensive enough , If there is