contact:
  email: datahub@naturalcapitalproject.org
  organization:
  individual_name: Becky Chaplin-Kramer
  position_name: ''
license:
  path: https://creativecommons.org/licenses/by/4.0
  title: CC BY 4.0
geometamaker_version: 0.2.0
bytes: 5205592445
format: tif
uid: sizetimestamp:6aa5b706716e4d148261b9542f15834627d0b8acd97032d46d62d884744801e1
path: https://storage.googleapis.com/natcap-data-cache/collaborator-data/CNA-neugarten-chaplin-kramer/cna-ncp-layers-chaplinkramer/cna_ncp_nitrogenretenton_attn_500km.tif
scheme: file
type: raster
last_modified: 2025-08-27 22:40:37 UTC
citation: Chaplin-Kramer, R., Neugarten, R.A., Sharp, R.P. et al. Mapping the planet
  s critical natural assets. Nat Ecol Evol 7, 51 61 (2023). https://doi.org/10.1038/s41559-022-01934-5
description: "Nitrogen Retention for Water Quality Regulation expressed as nitrogen
  retention on natural and semi-natural pixels multiplied by the number of people
  downstream of those pixels at a resolution of 10 arc-sec (~300 m). Nitrogen retention
  is modeled using the InVEST Nutrient Delivery Ratio model (see (http://data.naturalcapitalproject.org/invest-releases/3.5.0/userguide/ndr.html
  for more detail), adapted for global runs using the methods described in Chaplin-Kramer
  et al. 2019. We use population data from Landscan 2017 (Supplementary Table 2) to
  represent the number of people that may benefit from an upstream hydrological flow
  into each ESA land cover pixel (resolution: 10 arc-sec, ~300 m).  For more information
  on this layer, including detailed methods, please see the lineage section of the
  accompanying metadata YAML file and/or visit the paper in the citation."
doi: ''
edition: ''
keywords:
- NITROGEN RETENTION
- INVEST OUTPUT
lineage: "This layer represents a mapped critical natural asset, defined as the natural
  and semi-natural ecosystems that provide 90% of the total current magnitude of 14
  types of nature's contributions to people (NCP). Detailed information on methodology
  for this layer, and all layers from Chaplin-Kramer et al. 2023 can be found in the
  supplementary materials here: https://static-content.springer.com/esm/art%3A10.1038%2Fs41559-022-01934-5/MediaObjects/41559_2022_1934_MOESM1_ESM.pdf
  or in the publication here: https://doi.org/10.1038/s41559-022-01934-5"
placenames:
- GLOBAL
purpose: ''
title: Nitrogen Retention for Water Quality Regulation (CNA)
url: https://storage.googleapis.com/natcap-data-cache/collaborator-data/CNA-neugarten-chaplin-kramer/cna-ncp-layers-chaplinkramer/cna_ncp_nitrogenretenton_attn_500km.tif
encoding: utf-8
sources:
- cna-ncp-layers-chaplinkramer/cna_ncp_nitrogenretenton_attn_500km.tif
data_model:
  bands:
  - index: 1
    gdal_type: Float32
    numpy_type: float32
    nodata: -9999.0
    description: '{Info}'
    title: ''
    units: Kg nitrogen retained * number of people downstream
    gdal_metadata:
      STATISTICS_MAXIMUM: '3390736384'
      STATISTICS_MEAN: '4073286.2556226'
      STATISTICS_MINIMUM: '0'
      STATISTICS_STDDEV: '24566719.16376'
  pixel_size:
  - 0.002777777777777778
  - -0.002777777777777778
  raster_size:
    width: 129600
    height: 64800
  gdal_metadata:
    AREA_OR_POINT: Area
spatial:
  bounding_box:
    xmin: -180.0
    ymin: -90.0
    xmax: 180.0
    ymax: 90.0
  crs: EPSG:4326
  crs_units: degree
