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Global Mangrove Watch
https://globalmangrovewatch.org
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National datasets and resources #716

Open lhilarides opened 1 year ago

lhilarides commented 1 year ago

Let's use this issue to keep track of different national datasets and resources.

To start here's a link to 4 national level mangrove extent datasets for Kenya, Tanzania, Mozambique and Madagascar (outputs of the Save Our Mangroves Now project): https://wetlandsint-my.sharepoint.com/:f:/g/personal/lammert_hilarides_wetlands_org/EgGNrBPJuQVBufaoQsntcLABUkl1UXVfo5toXxASlpVjxA?e=FhQ3xl

dhakelila commented 1 year ago

Thanks, Lammert, also adding the mock-up you shared by email: image002

lhilarides commented 1 year ago

Another example of Australian national level data, via Digital Earth Australia. The data is freely available via a WMS connection: https://ows.dea.ga.gov.au/?service=WMS&version=1.3.0&request=GetCapabilities (timeseries of data from 1987 - 2021, using different canopy cover classes), see legend: image

The disadvantage is we have no control over the visualisation of the layer. The advantage is that it can be plugged in easily.

[edit:] the raw data is also available in XYZ format as geotiffs from:

  1. https://dapds00.nci.org.au/thredds/catalog/jw04/ga_ls_mangrove_cover_cyear_3/3-0-0/catalog.html
  2. http://dea-public-data.s3-website-ap-southeast-2.amazonaws.com/?prefix=derivative/ga_ls_mangrove_cover_cyear_3/3-0-0/
larranz-vizz commented 1 year ago

Hello @lhilarides and @klongleywood,

We have the design based on your original proposal.

The intersected squares show the colors of the layer. I've picked contrasting colors to ensure readability. We'll test them with real data later, but they're a preliminary proposal for now.

And we are proposing an alternative. We noticed that the extent's information could be more relevant to the extent widget. Leaving the other resources as an independent widget called "external resources". You can take a look here. Also, I have added the download to the modal so the widget looks cleaner.

Let me know what you think about the proposals. Thank you!

klongleywood commented 1 year ago

@larranz-vizz

We talked about this on our call today and we decided that we prefer the design based on the original proposal. Thanks!

klongleywood commented 1 year ago

@dhakelila and FYI @lhilarides,

We have data from the Bahamas (TNC 2022): https://tnc.box.com/s/mvvjyjqrn6k787ervq456hnihnse1fo3

as well as the wider Caribbean: https://tnc.box.com/shared/static/000jz3wm11wksl1viilpx5c1ncnxfjfs.zip

Info button language is as follows: The mangrove maps for The Bahamas and for Bajo Yuna National Park in the Dominican Republic were classified by The Nature Conservancy from 4m-resolution 2017-2018 Planet imagery in eCognition, informed by extensive field data collected in 2022. Mangrove maps for the rest of the Caribbean were hand-digitized at 1-2m resolution using Bing, ESRI, and Google basemaps by students at BYU in 2021. These hand-digitized maps are not as accurate as the Planet-derived maps, and so The Nature Conservancy is working to refine these maps on a country-by-country basis. Please visit https://caribbeanscienceatlas.tnc.org/ for updated layers.

I've asked the TNC Caribbean team if they have calculated extents for each country. If not, we can coordinate as to who is in the best position to do this.

Let me know if there are any issues with accessing the files or their format

dhakelila commented 1 year ago

cc/ @AngelArcones , @aagm

klongleywood commented 1 year ago

@AngelArcones, @aagm -- here are the extent values for the Caribbean dataset

Caribbean Mangroves Area Calcs 06062023.xlsx

aagm commented 1 year ago

Hi Kate! Thank you very much, does the carebean data correspond to 2021? Also is it possible to also get the extent numbers for Kenya, Tanzania, Mozambique, Madagascar and Australia?

klongleywood commented 1 year ago

Hi @aagm -- for the Bahamas, please use 2022 -- for other countries please use 2021. For the Bahamas, can you please ensure that the dataset is not downloadable? We'd like to add a note to the metadata that anyone requesting the data should contact sschill@TNC.ORG

For Trinidad and Tobago metadata, could you specify that It was also derived by TNC from Planetscope imagery, but the classification was informed by the IMA mangrove layer.

For the other countries you've referenced, we're still working on those.

lhilarides commented 1 year ago

Also is it possible to also get the extent numbers for Kenya, Tanzania, Mozambique, Madagascar and Australia?

Hi @aagm , here are the numbers for that dataset:

Save Our Mangroves Now project: Mangrove Extent 2020 per country (in hectares): Kenya: 52,783 Tanzania: 114,417 Mozambique: 338,027 Madagascar: 270,955

AngelArcones commented 1 year ago

@lhilarides @klongleywood I have some data I am still missing for this widget and some things I would like to confirm:

We are working on implementation and probably more items will appear as we review

dhakelila commented 1 year ago

Hi @lhilarides , @klongleywood we are working on this widget, and we realized that having the Mangrove Extent layer on it might be quite repetitive. We can always add it, but for the time being, you will see the widget without that part for now. Let's discuss about that when it is in staging. (hopefully by tomorrow)

lhilarides commented 1 year ago

Some resources for Mexico:

A link to the Mexican Mangrove Monitoring System: https://www.biodiversidad.gob.mx/monitoreo/smmm A link to the Mexican Mangrove Atlas: https://www.biodiversidad.gob.mx/atlas/manglar/

klongleywood commented 1 year ago

For countries in the Caribbean, the info button is missing the following sentence:

The mangrove maps for The Bahamas and for Bajo Yuna National Park in the Dominican Republic were classified by The Nature Conservancy from 4m-resolution 2017-2018 Planet imagery in eCognition, informed by extensive field data collected in 2022.

For the Bahamas, there should also be a sentence noting that anyone requesting the data should contact sschill@TNC.ORG

AngelArcones commented 1 year ago

@klongleywood @lhilarides While we work on adding the new location (Mexico) and update the details on all the others, we are still missing some information to complete the existing ones:

lhilarides commented 1 year ago

@AngelArcones, here's the info for Australia: (please note that the extent value was online already)

Owner Commonwealth of Australia (Geoscience Australia)

What this product offers This product provides valuable information about the extent and canopy density of mangroves for each year between 1987 and 2021 for the entire Australian coastline.

The canopy cover classes are:

The product consists of a sequence (one per year) of 30 m resolution maps that are generated by analysing the Landsat fractional cover developed by the Joint Remote Sensing Research Program and the Global Mangrove Watch layers developed by the Japanese Aerospace Exploration Agency.

Technical information To determine annual national level changes in mangroves between 1987 and 2021, changes in their canopy cover type were quantified using dense time-series (nominally every 16 days cloud permitting) of 30 m spatial resolution Landsat sensor data available within Digital Earth Australia (DEA).

The potential area that mangroves occupied over this period was established as the union of mangrove maps generated for 1996, 2007-2010 and 2015/16 through the Japanese Aerospace Exploration Agency (JAXA) Global Mangrove Watch (GMW), and then refined using tasseled cap wetness dynamics and State and Territory mangrove mapping products. Within this area the 10th percentile of the green vegetation fraction of the ga_ls_fc_pc_cyear_3 (pv_pc_10) was retrieved. The percentage Planimetric Canopy Cover (PCC%) for each Landsat pixel was estimated using a relationship between pv_pc_10 and Light Detection And Ranging (LiDAR)-derived PCC% (< 1 m resolution and based on LiDAR acquisitions from all states supporting mangroves, excluding Victoria).

License CC BY Attribution 4.0 International License

lhilarides commented 1 year ago

For Mozambique, Madagascar, Kenya and Tanzania, please add these resources (both publications cover all 4 countries):

  1. State of the Western Indian Oceans Mangroves report: https://wetlandsint-my.sharepoint.com/:b:/g/personal/lammert_hilarides_wetlands_org/Eao_F4aGZLVFmWsmAhQfctcBdI3kNbAmJW02ZBbzsJnt2g?e=HfISLi
  2. Saving Our Mangroves in Kenya, Tanzania, Mozambique and Madagascar: https://www.mangrovealliance.org/wp-content/uploads/2022/10/SOMN-Saving-our-Mangroves_Ken-Tanz-Moz-Mada-Report-1.pdf

Info text for 1) The Status of Mangroves in the Western Indian Ocean Region is part of a series of reports on the status of the mangroves, developed under the Global Mangrove Alliance (GMA). the report presents the most reliable and up-to-date information currently available on the spatial extent and recent changes in mangrove distribution in the Western Indian Ocean region. It aims to provide a common knowledge base for planning and decision making, but also provide specific recommendations to support integration of mangroves across policies and plans.

Info text for 2) This report offers an overview of the work by the Save our Mangroves Now! (SOMN) initiative in the region to date, bringing together data on extent, loss and gains, and the socio-economic value of mangroves in the region, as well as governance challenges and policy opportunities.

dhakelila commented 1 year ago

@klongleywood , we miss the figure for Australia mangrove extent that we should add in the national dashboard.

dhakelila commented 1 year ago

For African countries, we still miss the info for the info button

klongleywood commented 1 year ago

@dhakelila for Australia, the 2017 extent is 11,142 km2

For the info button language, Lammert has pasted it above -- repasting below -- do you need anything else in addition to this?

For Mozambique, Madagascar, Kenya and Tanzania, please add these resources (both publications cover all 4 countries):

State of the Western Indian Oceans Mangroves report: https://wetlandsint-my.sharepoint.com/🅱️/g/personal/lammert_hilarides_wetlands_org/Eao_F4aGZLVFmWsmAhQfctcBdI3kNbAmJW02ZBbzsJnt2g?e=HfISLi Saving Our Mangroves in Kenya, Tanzania, Mozambique and Madagascar: https://www.mangrovealliance.org/wp-content/uploads/2022/10/SOMN-Saving-our-Mangroves_Ken-Tanz-Moz-Mada-Report-1.pdf Info text for 1) The Status of Mangroves in the Western Indian Ocean Region is part of a series of reports on the status of the mangroves, developed under the Global Mangrove Alliance (GMA). the report presents the most reliable and up-to-date information currently available on the spatial extent and recent changes in mangrove distribution in the Western Indian Ocean region. It aims to provide a common knowledge base for planning and decision making, but also provide specific recommendations to support integration of mangroves across policies and plans.

Info text for 2) This report offers an overview of the work by the Save our Mangroves Now! (SOMN) initiative in the region to date, bringing together data on extent, loss and gains, and the socio-economic value of mangroves in the region, as well as governance challenges and policy opportunities.

klongleywood commented 1 year ago

@dhakelila I'm seeing the National Dashboards are on production and I think they shouldn't be -- correct? Bahamas is still not working.

dhakelila commented 1 year ago

That was an error. Hiding those asap

On Thu, Jul 20, 2023 at 4:39 PM klongleywood @.***> wrote:

@dhakelila https://github.com/dhakelila I'm seeing the National Dashboards are on production and I think they shouldn't be -- correct? Bahamas is still not working.

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AngelArcones commented 1 year ago

@klongleywood We are currently showing the 2020 extent for Australia. Is there anywhere we can access the number for that year? or should we use 2017 extent value?

As for the African countries info, that text provided by Lammert is for the additional resources (and already available there), but we lack a description for the extent layer (we have a placeholder for now)

klongleywood commented 1 year ago

@AngelArcones -- ahh ok. The only place I would know to find the extent for that year would be in the manuscript that I linked above -- that's where I obtained that 2017 value. I've asked one of our colleagues who was a co-author on that paper if he knew the more recent extent for the Australia dataset and he won't be able to calculate it until after next week.

As for the info text for the African countries extent, I'm afraid I don't have that. We'll have to get that from @lhilarides when he returns from holiday

Given that we're missing this information, I would say let's hold off on National Dashboards for now. I'm currently not able to access the development site as I get the following error: Application error: a client-side exception has occurred (see the browser console for more information). but it would be great if I could regain access for next week so I can give a preview of this feature at the conference.

dhakelila commented 1 year ago

@klongleywood , National dashboards are back in staging. They are working fine for us, but let us know. https://www.loom.com/share/1ba26a34c10843bfac84c9255c2edda9

klongleywood commented 1 year ago

@dhakelila yes, I just checked and they look good to me too, including Bahamas.

klongleywood commented 10 months ago

From Pete -- here are updated Australia extent files for the National Dashboard. @lhilarides is working on tracking down the figure for the 2020 extent.

Raster: https://www.dropbox.com/scl/fi/b8ib06w1444rn3dzjequm/australia_2022_epsg4326_mngs.tar.gz?rlkey=rwu01zv7c6d5e4t9ymm147ovy&dl=0

Vector: https://www.dropbox.com/scl/fi/ldydyqwhfzaqftizib2wu/australia_2022_epsg4326_mngs.gpkg.gz?rlkey=8dq74fh3u6uxhckglzy23jbqx&dl=0

The data were projected in EPSG:3577 but I reprojected to EPSG:4326 as I assumed this would be more helpful for the portal and correspond with other layers.

AngelArcones commented 10 months ago

@klongleywood The Australia 2022 layer is now available (along with the 2020 data previously uploaded) in staging for you to review. We would need to know if we should keep both 2020 and 2022, or just this new 2022 layer provided.

Also, let us know whenever any of the missing data for the national dashboards is available (Australia extent that you already mentioned, and the and info text for the African countries and Mexico)

AngelArcones commented 2 months ago

@klongleywood We are still lacking the information described in the last message (Australia extent, and info text for Mexico, Kenya, Mozambique, Tanzania, Madagascar). Do we have any of that info that we can update?

klongleywood commented 2 months ago

@lhilarides can you help with this?

lhilarides commented 2 months ago

Here's the text for the "Save Our Mangroves Now" layers for Kenya, Tanzania, Mozambique and Madagascar

_These layers were developed by Wetlands International for the “Roots of Hope” white paper in the Save Our Mangroves Now project in 2021, when Global Mangrove Watch layers were not available for years after 2016. The mangrove extent shows mangrove cover in the year 2020. The remote sensing analysis is based on an annual summary of Landsat 8 data, at 30m resolution, executed in Google Earth Engine using a random forest machine learning algorithm.

License: CC-BY-4.0_