LENZ - October vapour pressure deficit

2409
131
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

October vapour pressure deficit data layer used in the creation of Land Environments of New Zealand (LENZ) classification. The classification layers have been made publicly available by the Ministry for the Environment (see data.mfe.govt.nz/layers/?q=LENZ for to access these layers).

October vapour pressure deficit, recorded in kPa, is used to estimate the effects of variation in the dryness of the air. The climate station data used in the development of this climate surface were derived from summaries of climate observations published by the New Zealand Meteorological Service, using data collected over the period from 1950-1980. Estimates of the vapour pressure deficit for each month were derived by coupling a 100 m DEM with a thin-plate spline surface fitted to an irregular network of 287 meteorological stations, using humidity and temperature data. The resulting 100 metre layer was then interpolated to 25 metres using bilinear interpolation.

Calculation of the vapour pressure deficit first required estimation of the temperature at 0900 hours, the time at which humidity measurements are made. This was calculated from the measured mean daily minimum and maximum temperatures for each month using a function that simulates the temperature course through the day. The estimated temperature at 0900 hours was then used to calculate the saturation water vapour pressure , which indicates the maximum amount of water vapour able to be held in the air given its temperature. Vapour pressure deficits in October were used in LENZ as this is the month when westerly winds are generally most persistent, resulting in strong geographic variation in vapour pressure deficits across New Zealand.

This layer has been multiplied by a factor of 100 (i.e. converted into an integer grid) to save space and make the grids more responsive. A value of 33 is actually 0.33 kPa.

Additional details such as the climate station locations used in the creation of the layer and error maps are defined in the attached LENZ Technical Guide.

Layer ID 48091
Data type Grid
Resolution 25.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Bannockburn Soil Map (SB222)

2489
18
Added
21 Jun 2013

This dataset was first added to LRIS Portal on 21 Jun 2013.

A downloadable TIFF image of the 1:15,000 scale SB222 soil map - Soils of the Bannockburn Valley, South Island, New Zealand by FG Beecroft. A full resolution PDF version is also available in the attachments section.

Note this is a more detailed soil map than the Grow Otago soils maps, but uses the old Genetic Soil Classification - soil naming conventions used in this map and the attached report may differ from those found in newer soils maps and databases.

Layer ID 48358
Data type Image/Raster
Resolution 3.000m
Services Catalog Service (CS-W), data.govt.nz Atom Feed

This layer provides a classification of New Zealand ecosystems according to tree and shrub composition. Generalized Dissimilarity Modelling was used to produce a model of biotic composition in relation ship to environment and biogeography. This model was used to transform and scale environmental layers to predict community composition. The transformed environmental layers were then used to classify New Zealand into areas of similar biotic composition. The biotic data used for this model include all non-fern tree and shrub taxa from NVS recce data and estimated community compositions from pollen data.

Layer ID 48224
Data type Grid
Resolution 100.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Soil Map of Franklin County

2408
46
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

The dataset contains polygons of soils of Franklin County mapped at 1:63 360. The attributes contain the soil series and the soil classification. No analytical properties of the soil are included.

Layer ID 48141
Data type Vector polygon
Feature count 241
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Soil Map of Piako County

2306
35
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

The dataset contains polygons of soils of Piako County mapped at 1:63 360. The attributes contain the soil series and the soil classification. No analytical properties of the soil are included.

Layer ID 48129
Data type Vector polygon
Feature count 694
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Soil Survey of Pukekohe Borough.

2281
20
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

The dataset contains polygons of soils of Pukekohe Borough mapped at 1:25000. The attributes contain the soil series and the soil classification. No analytical properties of the soil are included.

Layer ID 48155
Data type Vector polygon
Feature count 25
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Soil Map of Rangitikei County

2202
49
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

The dataset contains polygons of soils of Rangitikei County, mapped at 1:63360. Existing soil data by Cowie et al. (1967) were incorporated into this survey.
The attributes contain the soil series and the soil classification. No analytical properties of the soil are included.

Layer ID 48161
Data type Vector polygon
Feature count 1180
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

The dataset contains polygons of soils of part Wanganui County mapped at 1:63360. The attributes contain the soil series and the soil classification. No analytical properties of the soils are included.

Layer ID 48162
Data type Vector polygon
Feature count 626
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

The dataset contains polygons of soils of King Country mapped at 1:63360. The attributes contain the soil series and the soil classification. No analytical properties of the soils are included.

Layer ID 48139
Data type Vector polygon
Feature count 2627
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

FSL Permeability Profile

2026
200
Added
04 Jun 2010

This dataset was first added to LRIS Portal on 04 Jun 2010.

The New Zealand Fundamental Soil Layer originates from a relational join of features from two databases: the New Zealand Land Resource Inventory (NZLRI), and the National Soils Database (NSD). The NZLRI is a national polygon database of physical land resource information, including a soil unit. Soil is one in an inventory of five physical factors (including rock, slope, erosion, and vegetation) delineated by physiographic polygons at approximately 1:50,000 scale. The NSD is a point database of soil physical, chemical, and mineralogical characteristics for over 1500 soil profiles nationally. A relational join between the NZLRI dominant soil and derivative tables from the NSD was the means by which 14 important soil attributes were attached to the NZLRI polygons. Some if these attributes originate from exact matches with NSD records, while others derive from matches to similar soils or professional estimates. This layers contains the permeability profile attribute. Permeability is the rate that water moves through saturated soil. The permeability of a soil profile is related to potential rooting depth, depth to a slowly permeable horizon and internal soil drainage. Permeablity classes are from Clayden and Webb (1994).

Layer ID 48105
Data type Vector polygon
Feature count 107298
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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